rename "frontmatter" to "meta"

Author: panglesd

src/model/comment.ml

@@ -150,7 +150,7 @@ let extract_frontmatter docs : _ =
       List.fold_left
         (fun (fm_acc, content_acc) doc ->
           match doc.Location_.value with
-          | `Code_block (Some "frontmatter", content, None) ->
+          | `Code_block (Some "meta", content, None) ->
               (parse_frontmatter content.Location_.value :: fm_acc, content_acc)
           | _ -> (fm_acc, doc :: content_acc))
         ([], []) docs

test/pages/frontmatter.t/one_frontmatter.mld

@@ -1,6 +1,6 @@
-{0 Title}
+{0 One frontmatter}
 
-{@frontmatter[
+{@meta[
 bli1: bloblobloblo1
 bli2: bloblobloblo2
 ]}

test/pages/frontmatter.t/run.t

@@ -34,12 +34,16 @@ When there is one frontmatter, it is extracted from the content:
                 "one_frontmatter"
               ]
             },
-            "title"
+            "one-frontmatter"
           ]
         },
         [
           {
-            "`Word": "Title"
+            "`Word": "One"
+          },
+          "`Space",
+          {
+            "`Word": "frontmatter"
           }
         ]
       ]
@@ -80,12 +84,16 @@ When there is more than one frontmatter, they are all extracted from the content
                 "two_frontmatters"
               ]
             },
-            "title"
+            "two-frontmatters"
           ]
         },
         [
           {
-            "`Word": "Title"
+            "`Word": "Two"
+          },
+          "`Space",
+          {
+            "`Word": "frontmatters"
           }
         ]
       ]

test/pages/frontmatter.t/two_frontmatters.mld

@@ -1,10 +1,10 @@
-{0 Title}
+{0 Two frontmatters}
 
-{@frontmatter[
+{@meta[
 bli1: bloblobloblo1
 bli2: bloblobloblo2
 ]}
 
-{@frontmatter[
+{@meta[
 bli3: bloblobloblo1
 ]}