From ee23914bdf0e35a438314dc1e61c9c76432686c5 Mon Sep 17 00:00:00 2001
From: GitHub Actions <actions@github.com>
Date: Tue, 18 Jul 2023 00:21:29 +0000
Subject: [PATCH] site deploy

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Source  : 67068464a62e630b3f7e008ec7e93ad5cb62e913
Branch  : md-outputs
Author  : GitHub Actions <actions@github.com>
Time    : 2023-07-03 15:50:00 +0000
Message : markdown source builds

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Source  : f6b992a12c44e987bfa676b96e4fcd7d749ca5aa
Branch  : main
Author  : Shari Laster <rhonabwy@gmail.com>
Time    : 2023-07-03 15:48:35 +0000
Message : Merge pull request #211 from kevintfrench/main

Replaced broken URL for a regex blog post with a link to a cross-posted version of the same post.
---
 01-regular-expressions.html              |  36 ++++----
 02-match-extract-strings.html            |  30 +++----
 03-quiz.html                             |  26 +++---
 04-exercises.html                        |  22 ++---
 404.html                                 |   4 +-
 CODE_OF_CONDUCT.html                     |   2 +-
 LICENSE.html                             |   2 +-
 aio.html                                 | 110 +++++++++++------------
 discuss.html                             |   2 +-
 images.html                              |   4 +-
 index.html                               |   4 +-
 instructor-notes.html                    |   4 +-
 instructor/01-regular-expressions.html   |  36 ++++----
 instructor/02-match-extract-strings.html |  30 +++----
 instructor/03-quiz.html                  |  26 +++---
 instructor/04-exercises.html             |  22 ++---
 instructor/404.html                      |   4 +-
 instructor/CODE_OF_CONDUCT.html          |   2 +-
 instructor/LICENSE.html                  |   2 +-
 instructor/aio.html                      | 110 +++++++++++------------
 instructor/discuss.html                  |   2 +-
 instructor/images.html                   |   4 +-
 instructor/index.html                    |   4 +-
 instructor/instructor-notes.html         |   4 +-
 instructor/key-points.html               |   4 +-
 instructor/profiles.html                 |   4 +-
 instructor/reference.html                |   2 +-
 key-points.html                          |   4 +-
 pkgdown.yml                              |   2 +-
 profiles.html                            |   4 +-
 reference.html                           |   2 +-
 31 files changed, 257 insertions(+), 257 deletions(-)

diff --git a/01-regular-expressions.html b/01-regular-expressions.html
index eb80475f..3aea4c5b 100644
--- a/01-regular-expressions.html
+++ b/01-regular-expressions.html
@@ -424,7 +424,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">organize</span></span>
@@ -483,7 +483,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organize</span></span>
@@ -519,7 +519,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <pre><code><span><span class="va">organiser</span></span>
 <span><span class="va">Organized</span></span>
@@ -555,7 +555,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organized</span></span>
@@ -591,7 +591,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organized</span></span>
@@ -627,7 +627,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <pre><code><span><span class="va">organisers</span></span>
 <span><span class="va">Organizers</span></span>
@@ -663,7 +663,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organi1e</span></span>
@@ -724,7 +724,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <pre><code><span><span class="va">French</span></span>
 <span><span class="va">France</span></span>
@@ -760,7 +760,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
 <div class="accordion-body">
 <pre><code><span><span class="va">French</span></span>
 <span><span class="va">France</span></span>
@@ -794,7 +794,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
 <div class="accordion-body">
 <pre><code>^France|^French</code></pre>
 <p>This will also find words where there were characters after
@@ -823,7 +823,7 @@ <h4 class="accordion-header" id="headingSolution11">
   Solutions
   </h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
 <div class="accordion-body">
 <pre><code>\b[Cc]olou?r\b|\bCOLOU?R\b
 /colou?r/i</code></pre>
@@ -865,7 +865,7 @@ <h4 class="accordion-header" id="headingSolution12">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution12" class="accordion-collapse collapse" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
 <div class="accordion-body">
 <pre><code>\bhead ?rest\b</code></pre>
 <p>Note that although <code>\bhead\s?rest\b</code> does work, it will
@@ -896,7 +896,7 @@ <h4 class="accordion-header" id="headingSolution13">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution13" class="accordion-collapse collapse" data-bs-parent="#accordionSolution13" aria-labelledby="headingSolution13">
+<div id="collapseSolution13" class="accordion-collapse collapse" aria-labelledby="headingSolution13" data-bs-parent="#accordionSolution13">
 <div class="accordion-body">
 <pre><code>0+[A-Za-z]{4}\b</code></pre>
 </div>
@@ -922,7 +922,7 @@ <h4 class="accordion-header" id="headingSolution14">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution14" class="accordion-collapse collapse" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
+<div id="collapseSolution14" class="accordion-collapse collapse" aria-labelledby="headingSolution14" data-bs-parent="#accordionSolution14">
 <div class="accordion-body">
 <pre><code>\d{4}</code></pre>
 <p>Note: this will also match four-digit strings within longer strings
@@ -950,7 +950,7 @@ <h4 class="accordion-header" id="headingSolution15">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution15" class="accordion-collapse collapse" data-bs-parent="#accordionSolution15" aria-labelledby="headingSolution15">
+<div id="collapseSolution15" class="accordion-collapse collapse" aria-labelledby="headingSolution15" data-bs-parent="#accordionSolution15">
 <div class="accordion-body">
 <pre><code>\b\d{2}-\d{2}-\d{4}\b</code></pre>
 <p>Depending on your data, you may choose to remove the word
@@ -979,7 +979,7 @@ <h4 class="accordion-header" id="headingSolution16">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution16" class="accordion-collapse collapse" data-bs-parent="#accordionSolution16" aria-labelledby="headingSolution16">
+<div id="collapseSolution16" class="accordion-collapse collapse" aria-labelledby="headingSolution16" data-bs-parent="#accordionSolution16">
 <div class="accordion-body">
 <pre><code>\d{2}-\d{2}-\d{2,4}$</code></pre>
 <p>Note this will also find strings such as <code>31-01-198</code> at
@@ -1011,7 +1011,7 @@ <h4 class="accordion-header" id="headingSolution17">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution17" class="accordion-collapse collapse" data-bs-parent="#accordionSolution17" aria-labelledby="headingSolution17">
+<div id="collapseSolution17" class="accordion-collapse collapse" aria-labelledby="headingSolution17" data-bs-parent="#accordionSolution17">
 <div class="accordion-body">
 <pre><code>.* ?: .*, \d{4}</code></pre>
 <p>Without word boundaries you will find that this matches any text you
@@ -1096,7 +1096,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/01-regular-expressions.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-07-03",
-  "datePublished": "2023-07-11"
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/02-match-extract-strings.html b/02-match-extract-strings.html
index 14adcc8a..7ec8b97b 100644
--- a/02-match-extract-strings.html
+++ b/02-match-extract-strings.html
@@ -303,7 +303,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The string ‘community-led’ matches the first search, but drops out of
 this result because the space does not match the character
@@ -332,7 +332,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>For instance, <code>\S+\b</code>. This would match one or more
 non-space characters followed by a word boundary.</p>
@@ -361,7 +361,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>Because the string ‘communi’ is present in all of those words,
 including <code>communi</code>cation and <code>communi</code>ty. Because
@@ -393,7 +393,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <p>The word Community is present in the text with a capital
 <code>C</code> and with a lowercase <code>c</code> 16 times.</p>
@@ -421,7 +421,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <p>There is no matching string present at the start of a line. Look at
 the text and replace the string after the <code>^</code> with something
@@ -449,7 +449,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <pre><code>[Cc]omm\w+s\b</code></pre>
 <p><code>[Cc]</code> finds capital and lowercase <code>c</code></p>
@@ -488,7 +488,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
 <div class="accordion-body">
 <p>The ‘@’ character.</p>
 </div>
@@ -518,7 +518,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
 <div class="accordion-body">
 <pre><code>[\w.-]+@</code></pre>
 <p><code>\w</code> matches any word character (including digits and
@@ -563,7 +563,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
 <div class="accordion-body">
 <pre><code>[\w.-]+\.\w{2,3} OR [\w.-]+\.\w+</code></pre>
 <p>See the previous exercise for the explanation of the expression up to
@@ -614,7 +614,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
 <div class="accordion-body">
 <pre><code>\d{3}-\d{4}</code></pre>
 <p><code>\d</code> matches digits</p>
@@ -649,7 +649,7 @@ <h4 class="accordion-header" id="headingSolution11">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
 <div class="accordion-body">
 <pre><code>\d{3}-\d{3}-\d{4}</code></pre>
 <p><code>\d</code> matches digits</p>
@@ -686,7 +686,7 @@ <h4 class="accordion-header" id="headingSolution12">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
 <div class="accordion-body">
 <pre><code>\(\d{3}\) ?\d{3}-\d{4}</code></pre>
 <p><code>\(</code> escape character with the parenthesis as
@@ -725,7 +725,7 @@ <h4 class="accordion-header" id="headingSolution13">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution13" class="accordion-collapse collapse" aria-labelledby="headingSolution13" data-bs-parent="#accordionSolution13">
+<div id="collapseSolution13" class="accordion-collapse collapse" data-bs-parent="#accordionSolution13" aria-labelledby="headingSolution13">
 <div class="accordion-body">
 <pre><code>\+\d{1,3} ?\(\d{3}\)\s?\d{3}-\d{4}</code></pre>
 <p><code>\+</code> escape character with the plus sign as
@@ -798,7 +798,7 @@ <h4 class="accordion-header" id="headingSolution14">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution14" class="accordion-collapse collapse" aria-labelledby="headingSolution14" data-bs-parent="#accordionSolution14">
+<div id="collapseSolution14" class="accordion-collapse collapse" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
 <div class="accordion-body">
 <p>This is one way to solve this challenge. You might have found others.
 Inside the cell you can use the below to extract the latitude and
@@ -890,7 +890,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/02-match-extract-strings.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-03",
-  "datePublished": "2023-07-11"
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/03-quiz.html b/03-quiz.html
index e5bc0db0..c410dad0 100644
--- a/03-quiz.html
+++ b/03-quiz.html
@@ -295,7 +295,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Answer
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p><strong>C</strong></p>
 </div>
@@ -327,7 +327,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Answer
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p><strong>A</strong></p>
 </div>
@@ -359,7 +359,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Answer
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p><strong>B</strong></p>
 </div>
@@ -391,7 +391,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Answer
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p><strong>B</strong></p>
 </div>
@@ -423,7 +423,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Answer
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <p><strong>C</strong></p>
 </div>
@@ -456,7 +456,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Answer
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p><strong>B</strong></p>
 </div>
@@ -489,7 +489,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Answer
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p><strong>C</strong></p>
 </div>
@@ -521,7 +521,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Answer
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <p><strong>A</strong></p>
 </div>
@@ -553,7 +553,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Answer
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
 <div class="accordion-body">
 <p><strong>C</strong></p>
 </div>
@@ -585,7 +585,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Answer
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
 <div class="accordion-body">
 <p><strong>A</strong></p>
 </div>
@@ -619,7 +619,7 @@ <h4 class="accordion-header" id="headingSolution11">
   Answer
   </h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
 <div class="accordion-body">
 <p><strong>B</strong></p>
 </div>
@@ -652,7 +652,7 @@ <h4 class="accordion-header" id="headingSolution12">
   Answer
   </h4>
 </button>
-<div id="collapseSolution12" class="accordion-collapse collapse" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
 <div class="accordion-body">
 <p><strong>A</strong></p>
 </div>
@@ -725,7 +725,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/03-quiz.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-03",
-  "datePublished": "2023-07-11"
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/04-exercises.html b/04-exercises.html
index 63831e22..91be64ec 100644
--- a/04-exercises.html
+++ b/04-exercises.html
@@ -290,7 +290,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Answer
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>This matches <code>France</code>, <code>French</code>, in addition to
 the misspellings <code>Frence</code>, and <code>Franch</code>. It would
@@ -321,7 +321,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Answer
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>This matches <code>France</code>, <code>French</code>,
 <code>Frence</code>, and <code>Franch</code> <em>only</em> at the end of
@@ -353,7 +353,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Answer
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p><code>^France|^French</code> This would also find strings with other
 characters coming after <code>French</code>, such as
@@ -382,7 +382,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Answer
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>In real life, you <em>should</em> only come across the case
 insensitive variations <code>colour</code>, <code>color</code>,
@@ -419,7 +419,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Answer
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <p><code>\bhead ?rest\b</code>. Note that although
 <code>\bhead\s?rest\b</code> does work, it would also match zero or one
@@ -450,7 +450,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Answer
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p><code>0+[a-z]{4}\b</code></p>
 </div>
@@ -477,7 +477,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Answer
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p><code>\d{4}</code>. Note this will match 4 digit strings only but
 will find them within longer strings of numbers.</p>
@@ -505,7 +505,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Answer
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <p><code>\b\d{2}-\d{2}-\d{4}\b</code> In most real world situations, you
 are likely to want word bounding here (but it may depend on your
@@ -535,7 +535,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Answer
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
 <div class="accordion-body">
 <p><code>\d{2}-\d{2}-\d{2,4}$</code></p>
 </div>
@@ -563,7 +563,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Answer
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
 <div class="accordion-body">
 <p><code>.* : .*, \d{4}</code> You will find that this matches any text
 you put before <code>British</code> or <code>Manchester</code>. In this
@@ -640,7 +640,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/04-exercises.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-03",
-  "datePublished": "2023-07-11"
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/404.html b/404.html
index 7d5f23a4..e3810bf6 100644
--- a/404.html
+++ b/404.html
@@ -272,8 +272,8 @@ <h1>Page not found</h1>
   "url": "https://librarycarpentry.github.io/lc-data-intro/404.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/404.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2023-07-11",
-  "datePublished": "2023-07-11"
+  "dateModified": "2023-07-18",
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/CODE_OF_CONDUCT.html b/CODE_OF_CONDUCT.html
index 1d9acc37..5392e703 100644
--- a/CODE_OF_CONDUCT.html
+++ b/CODE_OF_CONDUCT.html
@@ -296,7 +296,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/CODE_OF_CONDUCT.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-03",
-  "datePublished": "2023-07-11"
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/LICENSE.html b/LICENSE.html
index 4503cffe..1efbe8f9 100644
--- a/LICENSE.html
+++ b/LICENSE.html
@@ -347,7 +347,7 @@ <h1>Licenses</h1>
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/LICENSE.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-03",
-  "datePublished": "2023-07-11"
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/aio.html b/aio.html
index f004c290..a21f3f44 100644
--- a/aio.html
+++ b/aio.html
@@ -474,7 +474,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">organize</span></span>
@@ -535,7 +535,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organize</span></span>
@@ -571,7 +571,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <pre><code><span><span class="va">organiser</span></span>
 <span><span class="va">Organized</span></span>
@@ -607,7 +607,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organized</span></span>
@@ -643,7 +643,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organized</span></span>
@@ -679,7 +679,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <pre><code><span><span class="va">organisers</span></span>
 <span><span class="va">Organizers</span></span>
@@ -715,7 +715,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organi1e</span></span>
@@ -777,7 +777,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <pre><code><span><span class="va">French</span></span>
 <span><span class="va">France</span></span>
@@ -813,7 +813,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
 <div class="accordion-body">
 <pre><code><span><span class="va">French</span></span>
 <span><span class="va">France</span></span>
@@ -847,7 +847,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
 <div class="accordion-body">
 <pre><code>^France|^French</code></pre>
 <p>This will also find words where there were characters after
@@ -876,7 +876,7 @@ <h4 class="accordion-header" id="headingSolution11">
   Solutions
   </h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
 <div class="accordion-body">
 <pre><code>\b[Cc]olou?r\b|\bCOLOU?R\b
 /colou?r/i</code></pre>
@@ -918,7 +918,7 @@ <h4 class="accordion-header" id="headingSolution12">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution12" class="accordion-collapse collapse" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
 <div class="accordion-body">
 <pre><code>\bhead ?rest\b</code></pre>
 <p>Note that although <code>\bhead\s?rest\b</code> does work, it will
@@ -949,7 +949,7 @@ <h4 class="accordion-header" id="headingSolution13">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution13" class="accordion-collapse collapse" data-bs-parent="#accordionSolution13" aria-labelledby="headingSolution13">
+<div id="collapseSolution13" class="accordion-collapse collapse" aria-labelledby="headingSolution13" data-bs-parent="#accordionSolution13">
 <div class="accordion-body">
 <pre><code>0+[A-Za-z]{4}\b</code></pre>
 </div>
@@ -975,7 +975,7 @@ <h4 class="accordion-header" id="headingSolution14">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution14" class="accordion-collapse collapse" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
+<div id="collapseSolution14" class="accordion-collapse collapse" aria-labelledby="headingSolution14" data-bs-parent="#accordionSolution14">
 <div class="accordion-body">
 <pre><code>\d{4}</code></pre>
 <p>Note: this will also match four-digit strings within longer strings
@@ -1003,7 +1003,7 @@ <h4 class="accordion-header" id="headingSolution15">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution15" class="accordion-collapse collapse" data-bs-parent="#accordionSolution15" aria-labelledby="headingSolution15">
+<div id="collapseSolution15" class="accordion-collapse collapse" aria-labelledby="headingSolution15" data-bs-parent="#accordionSolution15">
 <div class="accordion-body">
 <pre><code>\b\d{2}-\d{2}-\d{4}\b</code></pre>
 <p>Depending on your data, you may choose to remove the word
@@ -1032,7 +1032,7 @@ <h4 class="accordion-header" id="headingSolution16">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution16" class="accordion-collapse collapse" data-bs-parent="#accordionSolution16" aria-labelledby="headingSolution16">
+<div id="collapseSolution16" class="accordion-collapse collapse" aria-labelledby="headingSolution16" data-bs-parent="#accordionSolution16">
 <div class="accordion-body">
 <pre><code>\d{2}-\d{2}-\d{2,4}$</code></pre>
 <p>Note this will also find strings such as <code>31-01-198</code> at
@@ -1064,7 +1064,7 @@ <h4 class="accordion-header" id="headingSolution17">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution17" class="accordion-collapse collapse" data-bs-parent="#accordionSolution17" aria-labelledby="headingSolution17">
+<div id="collapseSolution17" class="accordion-collapse collapse" aria-labelledby="headingSolution17" data-bs-parent="#accordionSolution17">
 <div class="accordion-body">
 <pre><code>.* ?: .*, \d{4}</code></pre>
 <p>Without word boundaries you will find that this matches any text you
@@ -1165,7 +1165,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The string ‘community-led’ matches the first search, but drops out of
 this result because the space does not match the character
@@ -1194,7 +1194,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>For instance, <code>\S+\b</code>. This would match one or more
 non-space characters followed by a word boundary.</p>
@@ -1223,7 +1223,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>Because the string ‘communi’ is present in all of those words,
 including <code>communi</code>cation and <code>communi</code>ty. Because
@@ -1255,7 +1255,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <p>The word Community is present in the text with a capital
 <code>C</code> and with a lowercase <code>c</code> 16 times.</p>
@@ -1283,7 +1283,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <p>There is no matching string present at the start of a line. Look at
 the text and replace the string after the <code>^</code> with something
@@ -1311,7 +1311,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <pre><code>[Cc]omm\w+s\b</code></pre>
 <p><code>[Cc]</code> finds capital and lowercase <code>c</code></p>
@@ -1351,7 +1351,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
 <div class="accordion-body">
 <p>The ‘@’ character.</p>
 </div>
@@ -1381,7 +1381,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
 <div class="accordion-body">
 <pre><code>[\w.-]+@</code></pre>
 <p><code>\w</code> matches any word character (including digits and
@@ -1426,7 +1426,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
 <div class="accordion-body">
 <pre><code>[\w.-]+\.\w{2,3} OR [\w.-]+\.\w+</code></pre>
 <p>See the previous exercise for the explanation of the expression up to
@@ -1480,7 +1480,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
 <div class="accordion-body">
 <pre><code>\d{3}-\d{4}</code></pre>
 <p><code>\d</code> matches digits</p>
@@ -1515,7 +1515,7 @@ <h4 class="accordion-header" id="headingSolution11">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
 <div class="accordion-body">
 <pre><code>\d{3}-\d{3}-\d{4}</code></pre>
 <p><code>\d</code> matches digits</p>
@@ -1552,7 +1552,7 @@ <h4 class="accordion-header" id="headingSolution12">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
 <div class="accordion-body">
 <pre><code>\(\d{3}\) ?\d{3}-\d{4}</code></pre>
 <p><code>\(</code> escape character with the parenthesis as
@@ -1591,7 +1591,7 @@ <h4 class="accordion-header" id="headingSolution13">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution13" class="accordion-collapse collapse" aria-labelledby="headingSolution13" data-bs-parent="#accordionSolution13">
+<div id="collapseSolution13" class="accordion-collapse collapse" data-bs-parent="#accordionSolution13" aria-labelledby="headingSolution13">
 <div class="accordion-body">
 <pre><code>\+\d{1,3} ?\(\d{3}\)\s?\d{3}-\d{4}</code></pre>
 <p><code>\+</code> escape character with the plus sign as
@@ -1667,7 +1667,7 @@ <h4 class="accordion-header" id="headingSolution14">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution14" class="accordion-collapse collapse" aria-labelledby="headingSolution14" data-bs-parent="#accordionSolution14">
+<div id="collapseSolution14" class="accordion-collapse collapse" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
 <div class="accordion-body">
 <p>This is one way to solve this challenge. You might have found others.
 Inside the cell you can use the below to extract the latitude and
@@ -1776,7 +1776,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Answer
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p><strong>C</strong></p>
 </div>
@@ -1813,7 +1813,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Answer
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p><strong>A</strong></p>
 </div>
@@ -1850,7 +1850,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Answer
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p><strong>B</strong></p>
 </div>
@@ -1887,7 +1887,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Answer
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p><strong>B</strong></p>
 </div>
@@ -1924,7 +1924,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Answer
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <p><strong>C</strong></p>
 </div>
@@ -1962,7 +1962,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Answer
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p><strong>B</strong></p>
 </div>
@@ -2000,7 +2000,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Answer
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p><strong>C</strong></p>
 </div>
@@ -2037,7 +2037,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Answer
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <p><strong>A</strong></p>
 </div>
@@ -2074,7 +2074,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Answer
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
 <div class="accordion-body">
 <p><strong>C</strong></p>
 </div>
@@ -2111,7 +2111,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Answer
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
 <div class="accordion-body">
 <p><strong>A</strong></p>
 </div>
@@ -2150,7 +2150,7 @@ <h4 class="accordion-header" id="headingSolution11">
   Answer
   </h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
 <div class="accordion-body">
 <p><strong>B</strong></p>
 </div>
@@ -2188,7 +2188,7 @@ <h4 class="accordion-header" id="headingSolution12">
   Answer
   </h4>
 </button>
-<div id="collapseSolution12" class="accordion-collapse collapse" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
 <div class="accordion-body">
 <p><strong>A</strong></p>
 </div>
@@ -2268,7 +2268,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Answer
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>This matches <code>France</code>, <code>French</code>, in addition to
 the misspellings <code>Frence</code>, and <code>Franch</code>. It would
@@ -2299,7 +2299,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Answer
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>This matches <code>France</code>, <code>French</code>,
 <code>Frence</code>, and <code>Franch</code> <em>only</em> at the end of
@@ -2331,7 +2331,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Answer
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p><code>^France|^French</code> This would also find strings with other
 characters coming after <code>French</code>, such as
@@ -2360,7 +2360,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Answer
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>In real life, you <em>should</em> only come across the case
 insensitive variations <code>colour</code>, <code>color</code>,
@@ -2397,7 +2397,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Answer
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <p><code>\bhead ?rest\b</code>. Note that although
 <code>\bhead\s?rest\b</code> does work, it would also match zero or one
@@ -2428,7 +2428,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Answer
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p><code>0+[a-z]{4}\b</code></p>
 </div>
@@ -2455,7 +2455,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Answer
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p><code>\d{4}</code>. Note this will match 4 digit strings only but
 will find them within longer strings of numbers.</p>
@@ -2483,7 +2483,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Answer
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <p><code>\b\d{2}-\d{2}-\d{4}\b</code> In most real world situations, you
 are likely to want word bounding here (but it may depend on your
@@ -2513,7 +2513,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Answer
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
 <div class="accordion-body">
 <p><code>\d{2}-\d{2}-\d{2,4}$</code></p>
 </div>
@@ -2541,7 +2541,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Answer
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
 <div class="accordion-body">
 <p><code>.* : .*, \d{4}</code> You will find that this matches any text
 you put before <code>British</code> or <code>Manchester</code>. In this
@@ -2615,8 +2615,8 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://librarycarpentry.github.io/lc-data-intro/aio.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/aio.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2023-07-11",
-  "datePublished": "2023-07-11"
+  "dateModified": "2023-07-18",
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/discuss.html b/discuss.html
index 5cfec13c..e787a0a3 100644
--- a/discuss.html
+++ b/discuss.html
@@ -297,7 +297,7 @@ <h1>Discussion</h1>
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/discuss.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-03",
-  "datePublished": "2023-07-11"
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/images.html b/images.html
index 0a3bd2a0..b9fa0709 100644
--- a/images.html
+++ b/images.html
@@ -325,8 +325,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://librarycarpentry.github.io/lc-data-intro/images.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/images.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2023-07-11",
-  "datePublished": "2023-07-11"
+  "dateModified": "2023-07-18",
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/index.html b/index.html
index 65075ead..ebe58cba 100644
--- a/index.html
+++ b/index.html
@@ -315,8 +315,8 @@ <h3 id="this-lesson-does-not-require-any-special-setup-">This lesson does not re
   "url": "https://librarycarpentry.github.io/lc-data-intro/index.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/index.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2023-07-11",
-  "datePublished": "2023-07-11"
+  "dateModified": "2023-07-18",
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/instructor-notes.html b/instructor-notes.html
index 9467dd8d..415af30c 100644
--- a/instructor-notes.html
+++ b/instructor-notes.html
@@ -361,8 +361,8 @@ <h2 id="regular-expressions">Regular Expressions<a class="anchor" aria-label="an
   "url": "https://librarycarpentry.github.io/lc-data-intro/instructor-notes.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor-notes.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2023-07-11",
-  "datePublished": "2023-07-11"
+  "dateModified": "2023-07-18",
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/instructor/01-regular-expressions.html b/instructor/01-regular-expressions.html
index c0ff71d9..b961d092 100644
--- a/instructor/01-regular-expressions.html
+++ b/instructor/01-regular-expressions.html
@@ -425,7 +425,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">organize</span></span>
@@ -484,7 +484,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organize</span></span>
@@ -520,7 +520,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <pre><code><span><span class="va">organiser</span></span>
 <span><span class="va">Organized</span></span>
@@ -556,7 +556,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organized</span></span>
@@ -592,7 +592,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organized</span></span>
@@ -628,7 +628,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <pre><code><span><span class="va">organisers</span></span>
 <span><span class="va">Organizers</span></span>
@@ -664,7 +664,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organi1e</span></span>
@@ -725,7 +725,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <pre><code><span><span class="va">French</span></span>
 <span><span class="va">France</span></span>
@@ -761,7 +761,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
 <div class="accordion-body">
 <pre><code><span><span class="va">French</span></span>
 <span><span class="va">France</span></span>
@@ -795,7 +795,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
 <div class="accordion-body">
 <pre><code>^France|^French</code></pre>
 <p>This will also find words where there were characters after
@@ -824,7 +824,7 @@ <h4 class="accordion-header" id="headingSolution11">
   Solutions
   </h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
 <div class="accordion-body">
 <pre><code>\b[Cc]olou?r\b|\bCOLOU?R\b
 /colou?r/i</code></pre>
@@ -866,7 +866,7 @@ <h4 class="accordion-header" id="headingSolution12">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution12" class="accordion-collapse collapse" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
 <div class="accordion-body">
 <pre><code>\bhead ?rest\b</code></pre>
 <p>Note that although <code>\bhead\s?rest\b</code> does work, it will
@@ -897,7 +897,7 @@ <h4 class="accordion-header" id="headingSolution13">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution13" class="accordion-collapse collapse" data-bs-parent="#accordionSolution13" aria-labelledby="headingSolution13">
+<div id="collapseSolution13" class="accordion-collapse collapse" aria-labelledby="headingSolution13" data-bs-parent="#accordionSolution13">
 <div class="accordion-body">
 <pre><code>0+[A-Za-z]{4}\b</code></pre>
 </div>
@@ -923,7 +923,7 @@ <h4 class="accordion-header" id="headingSolution14">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution14" class="accordion-collapse collapse" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
+<div id="collapseSolution14" class="accordion-collapse collapse" aria-labelledby="headingSolution14" data-bs-parent="#accordionSolution14">
 <div class="accordion-body">
 <pre><code>\d{4}</code></pre>
 <p>Note: this will also match four-digit strings within longer strings
@@ -951,7 +951,7 @@ <h4 class="accordion-header" id="headingSolution15">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution15" class="accordion-collapse collapse" data-bs-parent="#accordionSolution15" aria-labelledby="headingSolution15">
+<div id="collapseSolution15" class="accordion-collapse collapse" aria-labelledby="headingSolution15" data-bs-parent="#accordionSolution15">
 <div class="accordion-body">
 <pre><code>\b\d{2}-\d{2}-\d{4}\b</code></pre>
 <p>Depending on your data, you may choose to remove the word
@@ -980,7 +980,7 @@ <h4 class="accordion-header" id="headingSolution16">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution16" class="accordion-collapse collapse" data-bs-parent="#accordionSolution16" aria-labelledby="headingSolution16">
+<div id="collapseSolution16" class="accordion-collapse collapse" aria-labelledby="headingSolution16" data-bs-parent="#accordionSolution16">
 <div class="accordion-body">
 <pre><code>\d{2}-\d{2}-\d{2,4}$</code></pre>
 <p>Note this will also find strings such as <code>31-01-198</code> at
@@ -1012,7 +1012,7 @@ <h4 class="accordion-header" id="headingSolution17">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution17" class="accordion-collapse collapse" data-bs-parent="#accordionSolution17" aria-labelledby="headingSolution17">
+<div id="collapseSolution17" class="accordion-collapse collapse" aria-labelledby="headingSolution17" data-bs-parent="#accordionSolution17">
 <div class="accordion-body">
 <pre><code>.* ?: .*, \d{4}</code></pre>
 <p>Without word boundaries you will find that this matches any text you
@@ -1097,7 +1097,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/01-regular-expressions.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-07-03",
-  "datePublished": "2023-07-11"
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/instructor/02-match-extract-strings.html b/instructor/02-match-extract-strings.html
index 90ffaf76..7604b450 100644
--- a/instructor/02-match-extract-strings.html
+++ b/instructor/02-match-extract-strings.html
@@ -304,7 +304,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The string ‘community-led’ matches the first search, but drops out of
 this result because the space does not match the character
@@ -333,7 +333,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>For instance, <code>\S+\b</code>. This would match one or more
 non-space characters followed by a word boundary.</p>
@@ -362,7 +362,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>Because the string ‘communi’ is present in all of those words,
 including <code>communi</code>cation and <code>communi</code>ty. Because
@@ -394,7 +394,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <p>The word Community is present in the text with a capital
 <code>C</code> and with a lowercase <code>c</code> 16 times.</p>
@@ -422,7 +422,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <p>There is no matching string present at the start of a line. Look at
 the text and replace the string after the <code>^</code> with something
@@ -450,7 +450,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Show me the solution
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 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
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 <div class="accordion-body">
 <pre><code>[Cc]omm\w+s\b</code></pre>
 <p><code>[Cc]</code> finds capital and lowercase <code>c</code></p>
@@ -489,7 +489,7 @@ <h4 class="accordion-header" id="headingSolution7">
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   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
 <div class="accordion-body">
 <p>The ‘@’ character.</p>
 </div>
@@ -519,7 +519,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
 <div class="accordion-body">
 <pre><code>[\w.-]+@</code></pre>
 <p><code>\w</code> matches any word character (including digits and
@@ -564,7 +564,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
 <div class="accordion-body">
 <pre><code>[\w.-]+\.\w{2,3} OR [\w.-]+\.\w+</code></pre>
 <p>See the previous exercise for the explanation of the expression up to
@@ -615,7 +615,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
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 <div class="accordion-body">
 <pre><code>\d{3}-\d{4}</code></pre>
 <p><code>\d</code> matches digits</p>
@@ -650,7 +650,7 @@ <h4 class="accordion-header" id="headingSolution11">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
 <div class="accordion-body">
 <pre><code>\d{3}-\d{3}-\d{4}</code></pre>
 <p><code>\d</code> matches digits</p>
@@ -687,7 +687,7 @@ <h4 class="accordion-header" id="headingSolution12">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
 <div class="accordion-body">
 <pre><code>\(\d{3}\) ?\d{3}-\d{4}</code></pre>
 <p><code>\(</code> escape character with the parenthesis as
@@ -726,7 +726,7 @@ <h4 class="accordion-header" id="headingSolution13">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution13" class="accordion-collapse collapse" aria-labelledby="headingSolution13" data-bs-parent="#accordionSolution13">
+<div id="collapseSolution13" class="accordion-collapse collapse" data-bs-parent="#accordionSolution13" aria-labelledby="headingSolution13">
 <div class="accordion-body">
 <pre><code>\+\d{1,3} ?\(\d{3}\)\s?\d{3}-\d{4}</code></pre>
 <p><code>\+</code> escape character with the plus sign as
@@ -799,7 +799,7 @@ <h4 class="accordion-header" id="headingSolution14">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution14" class="accordion-collapse collapse" aria-labelledby="headingSolution14" data-bs-parent="#accordionSolution14">
+<div id="collapseSolution14" class="accordion-collapse collapse" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
 <div class="accordion-body">
 <p>This is one way to solve this challenge. You might have found others.
 Inside the cell you can use the below to extract the latitude and
@@ -891,7 +891,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/02-match-extract-strings.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-03",
-  "datePublished": "2023-07-11"
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/instructor/03-quiz.html b/instructor/03-quiz.html
index 273e3fed..b875dcad 100644
--- a/instructor/03-quiz.html
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@@ -296,7 +296,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Answer
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p><strong>C</strong></p>
 </div>
@@ -328,7 +328,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Answer
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
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 <div class="accordion-body">
 <p><strong>A</strong></p>
 </div>
@@ -360,7 +360,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Answer
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p><strong>B</strong></p>
 </div>
@@ -392,7 +392,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Answer
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
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 <div class="accordion-body">
 <p><strong>B</strong></p>
 </div>
@@ -424,7 +424,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Answer
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
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 <div class="accordion-body">
 <p><strong>C</strong></p>
 </div>
@@ -457,7 +457,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Answer
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
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 <div class="accordion-body">
 <p><strong>B</strong></p>
 </div>
@@ -490,7 +490,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Answer
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
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 <div class="accordion-body">
 <p><strong>C</strong></p>
 </div>
@@ -522,7 +522,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Answer
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
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 <div class="accordion-body">
 <p><strong>A</strong></p>
 </div>
@@ -554,7 +554,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Answer
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
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 <div class="accordion-body">
 <p><strong>C</strong></p>
 </div>
@@ -586,7 +586,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Answer
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
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 <div class="accordion-body">
 <p><strong>A</strong></p>
 </div>
@@ -620,7 +620,7 @@ <h4 class="accordion-header" id="headingSolution11">
   Answer
   </h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
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 <div class="accordion-body">
 <p><strong>B</strong></p>
 </div>
@@ -653,7 +653,7 @@ <h4 class="accordion-header" id="headingSolution12">
   Answer
   </h4>
 </button>
-<div id="collapseSolution12" class="accordion-collapse collapse" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
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 <div class="accordion-body">
 <p><strong>A</strong></p>
 </div>
@@ -726,7 +726,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/03-quiz.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-03",
-  "datePublished": "2023-07-11"
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/instructor/04-exercises.html b/instructor/04-exercises.html
index 4d879c4d..e5fc4752 100644
--- a/instructor/04-exercises.html
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@@ -291,7 +291,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Answer
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
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 <div class="accordion-body">
 <p>This matches <code>France</code>, <code>French</code>, in addition to
 the misspellings <code>Frence</code>, and <code>Franch</code>. It would
@@ -322,7 +322,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Answer
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
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 <div class="accordion-body">
 <p>This matches <code>France</code>, <code>French</code>,
 <code>Frence</code>, and <code>Franch</code> <em>only</em> at the end of
@@ -354,7 +354,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Answer
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
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 <div class="accordion-body">
 <p><code>^France|^French</code> This would also find strings with other
 characters coming after <code>French</code>, such as
@@ -383,7 +383,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Answer
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>In real life, you <em>should</em> only come across the case
 insensitive variations <code>colour</code>, <code>color</code>,
@@ -420,7 +420,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Answer
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <p><code>\bhead ?rest\b</code>. Note that although
 <code>\bhead\s?rest\b</code> does work, it would also match zero or one
@@ -451,7 +451,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Answer
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p><code>0+[a-z]{4}\b</code></p>
 </div>
@@ -478,7 +478,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Answer
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p><code>\d{4}</code>. Note this will match 4 digit strings only but
 will find them within longer strings of numbers.</p>
@@ -506,7 +506,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Answer
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <p><code>\b\d{2}-\d{2}-\d{4}\b</code> In most real world situations, you
 are likely to want word bounding here (but it may depend on your
@@ -536,7 +536,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Answer
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
 <div class="accordion-body">
 <p><code>\d{2}-\d{2}-\d{2,4}$</code></p>
 </div>
@@ -564,7 +564,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Answer
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
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 <div class="accordion-body">
 <p><code>.* : .*, \d{4}</code> You will find that this matches any text
 you put before <code>British</code> or <code>Manchester</code>. In this
@@ -641,7 +641,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/04-exercises.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-03",
-  "datePublished": "2023-07-11"
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/instructor/404.html b/instructor/404.html
index 234b88ad..0015200a 100644
--- a/instructor/404.html
+++ b/instructor/404.html
@@ -272,8 +272,8 @@ <h1>Page not found</h1>
   "url": "https://librarycarpentry.github.io/lc-data-intro/instructor/404.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/404.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2023-07-11",
-  "datePublished": "2023-07-11"
+  "dateModified": "2023-07-18",
+  "datePublished": "2023-07-18"
 }
 
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diff --git a/instructor/CODE_OF_CONDUCT.html b/instructor/CODE_OF_CONDUCT.html
index c78c90bf..9c221c75 100644
--- a/instructor/CODE_OF_CONDUCT.html
+++ b/instructor/CODE_OF_CONDUCT.html
@@ -297,7 +297,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/CODE_OF_CONDUCT.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-03",
-  "datePublished": "2023-07-11"
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/instructor/LICENSE.html b/instructor/LICENSE.html
index b82c8ebf..ce82f318 100644
--- a/instructor/LICENSE.html
+++ b/instructor/LICENSE.html
@@ -348,7 +348,7 @@ <h1>Licenses</h1>
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/LICENSE.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-03",
-  "datePublished": "2023-07-11"
+  "datePublished": "2023-07-18"
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diff --git a/instructor/aio.html b/instructor/aio.html
index 3e911394..a2f8781c 100644
--- a/instructor/aio.html
+++ b/instructor/aio.html
@@ -471,7 +471,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">organize</span></span>
@@ -532,7 +532,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
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-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
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 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organize</span></span>
@@ -568,7 +568,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
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 <div class="accordion-body">
 <pre><code><span><span class="va">organiser</span></span>
 <span><span class="va">Organized</span></span>
@@ -604,7 +604,7 @@ <h4 class="accordion-header" id="headingSolution4">
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   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organized</span></span>
@@ -640,7 +640,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organized</span></span>
@@ -676,7 +676,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <pre><code><span><span class="va">organisers</span></span>
 <span><span class="va">Organizers</span></span>
@@ -712,7 +712,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <pre><code><span><span class="va">organise</span></span>
 <span><span class="va">Organi1e</span></span>
@@ -774,7 +774,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <pre><code><span><span class="va">French</span></span>
 <span><span class="va">France</span></span>
@@ -810,7 +810,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
 <div class="accordion-body">
 <pre><code><span><span class="va">French</span></span>
 <span><span class="va">France</span></span>
@@ -844,7 +844,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
 <div class="accordion-body">
 <pre><code>^France|^French</code></pre>
 <p>This will also find words where there were characters after
@@ -873,7 +873,7 @@ <h4 class="accordion-header" id="headingSolution11">
   Solutions
   </h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
 <div class="accordion-body">
 <pre><code>\b[Cc]olou?r\b|\bCOLOU?R\b
 /colou?r/i</code></pre>
@@ -915,7 +915,7 @@ <h4 class="accordion-header" id="headingSolution12">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution12" class="accordion-collapse collapse" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
 <div class="accordion-body">
 <pre><code>\bhead ?rest\b</code></pre>
 <p>Note that although <code>\bhead\s?rest\b</code> does work, it will
@@ -946,7 +946,7 @@ <h4 class="accordion-header" id="headingSolution13">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution13" class="accordion-collapse collapse" data-bs-parent="#accordionSolution13" aria-labelledby="headingSolution13">
+<div id="collapseSolution13" class="accordion-collapse collapse" aria-labelledby="headingSolution13" data-bs-parent="#accordionSolution13">
 <div class="accordion-body">
 <pre><code>0+[A-Za-z]{4}\b</code></pre>
 </div>
@@ -972,7 +972,7 @@ <h4 class="accordion-header" id="headingSolution14">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution14" class="accordion-collapse collapse" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
+<div id="collapseSolution14" class="accordion-collapse collapse" aria-labelledby="headingSolution14" data-bs-parent="#accordionSolution14">
 <div class="accordion-body">
 <pre><code>\d{4}</code></pre>
 <p>Note: this will also match four-digit strings within longer strings
@@ -1000,7 +1000,7 @@ <h4 class="accordion-header" id="headingSolution15">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution15" class="accordion-collapse collapse" data-bs-parent="#accordionSolution15" aria-labelledby="headingSolution15">
+<div id="collapseSolution15" class="accordion-collapse collapse" aria-labelledby="headingSolution15" data-bs-parent="#accordionSolution15">
 <div class="accordion-body">
 <pre><code>\b\d{2}-\d{2}-\d{4}\b</code></pre>
 <p>Depending on your data, you may choose to remove the word
@@ -1029,7 +1029,7 @@ <h4 class="accordion-header" id="headingSolution16">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution16" class="accordion-collapse collapse" data-bs-parent="#accordionSolution16" aria-labelledby="headingSolution16">
+<div id="collapseSolution16" class="accordion-collapse collapse" aria-labelledby="headingSolution16" data-bs-parent="#accordionSolution16">
 <div class="accordion-body">
 <pre><code>\d{2}-\d{2}-\d{2,4}$</code></pre>
 <p>Note this will also find strings such as <code>31-01-198</code> at
@@ -1061,7 +1061,7 @@ <h4 class="accordion-header" id="headingSolution17">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution17" class="accordion-collapse collapse" data-bs-parent="#accordionSolution17" aria-labelledby="headingSolution17">
+<div id="collapseSolution17" class="accordion-collapse collapse" aria-labelledby="headingSolution17" data-bs-parent="#accordionSolution17">
 <div class="accordion-body">
 <pre><code>.* ?: .*, \d{4}</code></pre>
 <p>Without word boundaries you will find that this matches any text you
@@ -1163,7 +1163,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The string ‘community-led’ matches the first search, but drops out of
 this result because the space does not match the character
@@ -1192,7 +1192,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>For instance, <code>\S+\b</code>. This would match one or more
 non-space characters followed by a word boundary.</p>
@@ -1221,7 +1221,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <p>Because the string ‘communi’ is present in all of those words,
 including <code>communi</code>cation and <code>communi</code>ty. Because
@@ -1253,7 +1253,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <p>The word Community is present in the text with a capital
 <code>C</code> and with a lowercase <code>c</code> 16 times.</p>
@@ -1281,7 +1281,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <p>There is no matching string present at the start of a line. Look at
 the text and replace the string after the <code>^</code> with something
@@ -1309,7 +1309,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <pre><code>[Cc]omm\w+s\b</code></pre>
 <p><code>[Cc]</code> finds capital and lowercase <code>c</code></p>
@@ -1349,7 +1349,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
 <div class="accordion-body">
 <p>The ‘@’ character.</p>
 </div>
@@ -1379,7 +1379,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
 <div class="accordion-body">
 <pre><code>[\w.-]+@</code></pre>
 <p><code>\w</code> matches any word character (including digits and
@@ -1424,7 +1424,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
 <div class="accordion-body">
 <pre><code>[\w.-]+\.\w{2,3} OR [\w.-]+\.\w+</code></pre>
 <p>See the previous exercise for the explanation of the expression up to
@@ -1478,7 +1478,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
 <div class="accordion-body">
 <pre><code>\d{3}-\d{4}</code></pre>
 <p><code>\d</code> matches digits</p>
@@ -1513,7 +1513,7 @@ <h4 class="accordion-header" id="headingSolution11">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
 <div class="accordion-body">
 <pre><code>\d{3}-\d{3}-\d{4}</code></pre>
 <p><code>\d</code> matches digits</p>
@@ -1550,7 +1550,7 @@ <h4 class="accordion-header" id="headingSolution12">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
 <div class="accordion-body">
 <pre><code>\(\d{3}\) ?\d{3}-\d{4}</code></pre>
 <p><code>\(</code> escape character with the parenthesis as
@@ -1589,7 +1589,7 @@ <h4 class="accordion-header" id="headingSolution13">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution13" class="accordion-collapse collapse" aria-labelledby="headingSolution13" data-bs-parent="#accordionSolution13">
+<div id="collapseSolution13" class="accordion-collapse collapse" data-bs-parent="#accordionSolution13" aria-labelledby="headingSolution13">
 <div class="accordion-body">
 <pre><code>\+\d{1,3} ?\(\d{3}\)\s?\d{3}-\d{4}</code></pre>
 <p><code>\+</code> escape character with the plus sign as
@@ -1665,7 +1665,7 @@ <h4 class="accordion-header" id="headingSolution14">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution14" class="accordion-collapse collapse" aria-labelledby="headingSolution14" data-bs-parent="#accordionSolution14">
+<div id="collapseSolution14" class="accordion-collapse collapse" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
 <div class="accordion-body">
 <p>This is one way to solve this challenge. You might have found others.
 Inside the cell you can use the below to extract the latitude and
@@ -1775,7 +1775,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Answer
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p><strong>C</strong></p>
 </div>
@@ -1812,7 +1812,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Answer
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p><strong>A</strong></p>
 </div>
@@ -1849,7 +1849,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Answer
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p><strong>B</strong></p>
 </div>
@@ -1886,7 +1886,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Answer
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p><strong>B</strong></p>
 </div>
@@ -1923,7 +1923,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Answer
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <p><strong>C</strong></p>
 </div>
@@ -1961,7 +1961,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Answer
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p><strong>B</strong></p>
 </div>
@@ -1999,7 +1999,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Answer
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p><strong>C</strong></p>
 </div>
@@ -2036,7 +2036,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Answer
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <p><strong>A</strong></p>
 </div>
@@ -2073,7 +2073,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Answer
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
 <div class="accordion-body">
 <p><strong>C</strong></p>
 </div>
@@ -2110,7 +2110,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Answer
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
 <div class="accordion-body">
 <p><strong>A</strong></p>
 </div>
@@ -2149,7 +2149,7 @@ <h4 class="accordion-header" id="headingSolution11">
   Answer
   </h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
 <div class="accordion-body">
 <p><strong>B</strong></p>
 </div>
@@ -2187,7 +2187,7 @@ <h4 class="accordion-header" id="headingSolution12">
   Answer
   </h4>
 </button>
-<div id="collapseSolution12" class="accordion-collapse collapse" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
 <div class="accordion-body">
 <p><strong>A</strong></p>
 </div>
@@ -2268,7 +2268,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Answer
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>This matches <code>France</code>, <code>French</code>, in addition to
 the misspellings <code>Frence</code>, and <code>Franch</code>. It would
@@ -2299,7 +2299,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Answer
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>This matches <code>France</code>, <code>French</code>,
 <code>Frence</code>, and <code>Franch</code> <em>only</em> at the end of
@@ -2331,7 +2331,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Answer
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p><code>^France|^French</code> This would also find strings with other
 characters coming after <code>French</code>, such as
@@ -2360,7 +2360,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Answer
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>In real life, you <em>should</em> only come across the case
 insensitive variations <code>colour</code>, <code>color</code>,
@@ -2397,7 +2397,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Answer
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <p><code>\bhead ?rest\b</code>. Note that although
 <code>\bhead\s?rest\b</code> does work, it would also match zero or one
@@ -2428,7 +2428,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Answer
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p><code>0+[a-z]{4}\b</code></p>
 </div>
@@ -2455,7 +2455,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Answer
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p><code>\d{4}</code>. Note this will match 4 digit strings only but
 will find them within longer strings of numbers.</p>
@@ -2483,7 +2483,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Answer
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <p><code>\b\d{2}-\d{2}-\d{4}\b</code> In most real world situations, you
 are likely to want word bounding here (but it may depend on your
@@ -2513,7 +2513,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Answer
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
 <div class="accordion-body">
 <p><code>\d{2}-\d{2}-\d{2,4}$</code></p>
 </div>
@@ -2541,7 +2541,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Answer
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
 <div class="accordion-body">
 <p><code>.* : .*, \d{4}</code> You will find that this matches any text
 you put before <code>British</code> or <code>Manchester</code>. In this
@@ -2615,8 +2615,8 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://librarycarpentry.github.io/lc-data-intro/instructor/aio.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/aio.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2023-07-11",
-  "datePublished": "2023-07-11"
+  "dateModified": "2023-07-18",
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/instructor/discuss.html b/instructor/discuss.html
index 940b8061..76063f57 100644
--- a/instructor/discuss.html
+++ b/instructor/discuss.html
@@ -298,7 +298,7 @@ <h1>Discussion</h1>
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/discuss.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-03",
-  "datePublished": "2023-07-11"
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/instructor/images.html b/instructor/images.html
index 61717be5..804d5216 100644
--- a/instructor/images.html
+++ b/instructor/images.html
@@ -321,8 +321,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://librarycarpentry.github.io/lc-data-intro/instructor/images.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/images.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2023-07-11",
-  "datePublished": "2023-07-11"
+  "dateModified": "2023-07-18",
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/instructor/index.html b/instructor/index.html
index 7a725a8e..b510f9dd 100644
--- a/instructor/index.html
+++ b/instructor/index.html
@@ -363,8 +363,8 @@ <h3 id="this-lesson-does-not-require-any-special-setup-">This lesson does not re
   "url": "https://librarycarpentry.github.io/lc-data-intro/instructor/index.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/index.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2023-07-11",
-  "datePublished": "2023-07-11"
+  "dateModified": "2023-07-18",
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/instructor/instructor-notes.html b/instructor/instructor-notes.html
index 486cd447..5078c313 100644
--- a/instructor/instructor-notes.html
+++ b/instructor/instructor-notes.html
@@ -361,8 +361,8 @@ <h2 id="regular-expressions">Regular Expressions<a class="anchor" aria-label="an
   "url": "https://librarycarpentry.github.io/lc-data-intro/instructor/instructor-notes.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/instructor-notes.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2023-07-11",
-  "datePublished": "2023-07-11"
+  "dateModified": "2023-07-18",
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/instructor/key-points.html b/instructor/key-points.html
index ef74b609..5c90d66e 100644
--- a/instructor/key-points.html
+++ b/instructor/key-points.html
@@ -337,8 +337,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://librarycarpentry.github.io/lc-data-intro/instructor/key-points.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/key-points.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2023-07-11",
-  "datePublished": "2023-07-11"
+  "dateModified": "2023-07-18",
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/instructor/profiles.html b/instructor/profiles.html
index fa6014d8..22bdde66 100644
--- a/instructor/profiles.html
+++ b/instructor/profiles.html
@@ -258,8 +258,8 @@ <h1>Learner Profiles</h1>
   "url": "https://librarycarpentry.github.io/lc-data-intro/instructor/profiles.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/profiles.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2023-07-11",
-  "datePublished": "2023-07-11"
+  "dateModified": "2023-07-18",
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/instructor/reference.html b/instructor/reference.html
index 0b770f6b..56780a04 100644
--- a/instructor/reference.html
+++ b/instructor/reference.html
@@ -332,7 +332,7 @@ <h1>Regular Expression Cheat Sheet</h1>
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/instructor/reference.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-03",
-  "datePublished": "2023-07-11"
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/key-points.html b/key-points.html
index 537f8f3c..6928a78d 100644
--- a/key-points.html
+++ b/key-points.html
@@ -341,8 +341,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://librarycarpentry.github.io/lc-data-intro/key-points.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/key-points.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2023-07-11",
-  "datePublished": "2023-07-11"
+  "dateModified": "2023-07-18",
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/pkgdown.yml b/pkgdown.yml
index 26abd07f..948ed0c0 100644
--- a/pkgdown.yml
+++ b/pkgdown.yml
@@ -2,5 +2,5 @@ pandoc: 2.19.2
 pkgdown: 2.0.7
 pkgdown_sha: ~
 articles: {}
-last_built: 2023-07-11T00:19Z
+last_built: 2023-07-18T00:21Z
 
diff --git a/profiles.html b/profiles.html
index 69b5ce58..c4c19947 100644
--- a/profiles.html
+++ b/profiles.html
@@ -259,8 +259,8 @@ <h1>Learner Profiles</h1>
   "url": "https://librarycarpentry.github.io/lc-data-intro/profiles.html",
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/profiles.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2023-07-11",
-  "datePublished": "2023-07-11"
+  "dateModified": "2023-07-18",
+  "datePublished": "2023-07-18"
 }
 
   </script><script>
diff --git a/reference.html b/reference.html
index b3b662e2..72234d87 100644
--- a/reference.html
+++ b/reference.html
@@ -331,7 +331,7 @@ <h1>Regular Expression Cheat Sheet</h1>
   "identifier": "https://librarycarpentry.github.io/lc-data-intro/reference.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-03",
-  "datePublished": "2023-07-11"
+  "datePublished": "2023-07-18"
 }
 
   </script><script>