Add example: Debug your .gitignore

Author: danielhoherd

git/index.html

@@ -2661,6 +2661,15 @@
     </span>
   </a>
 
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#debug-your-gitignore" class="md-nav__link">
+    <span class="md-ellipsis">
+      Debug your .gitignore
+    </span>
+  </a>
+  
 </li>
 
       </ul>
@@ -8799,6 +8808,15 @@
     </span>
   </a>
 
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#debug-your-gitignore" class="md-nav__link">
+    <span class="md-ellipsis">
+      Debug your .gitignore
+    </span>
+  </a>
+  
 </li>
 
       </ul>
@@ -9658,6 +9676,10 @@ <h4 id="create-a-git-repository-for-the-cwd">Create a git repository for the CWD
 *~
 .DS_Store&quot; &gt;&gt; .gitignore
 </code></pre>
+<h4 id="debug-your-gitignore">Debug your .gitignore</h4>
+<pre><code class="language-sh">git check-ignore -v some_path another_thing .and-one-more
+</code></pre>
+<p>This will print out which rule is ignoring the given things, if any of them match any rules, and will print nothing if none of the given items are ignored.</p>
 <h3 id="git-clone">git clone</h3>
 <h4 id="clone-a-local-repo">Clone a local repo</h4>
 <pre><code class="language-sh">git clone /path/to/repo