Merge pull request #14047 from twbs/kbd

Docs: add missing example code code for `kbd` after #13351.

docs/_includes/css/code.html

@@ -17,7 +17,8 @@ For example, <code>&lt;section&gt;</code> should be wrapped as inline.
   To edit settings, press <kbd><kbd>ctrl</kbd> + <kbd>,</kbd></kbd>
 </div>
 {% highlight html %}
-To switch directories, type <kbd>cd</kbd> followed by the name of the directory.
+To switch directories, type <kbd>cd</kbd> followed by the name of the directory.<br>
+To edit settings, press <kbd><kbd>ctrl</kbd> + <kbd>,</kbd></kbd>
 {% endhighlight %}
 
   <h2 id="code-block">Basic block</h2>