Update html.md

Remove copy/paste leftover

Author: babsgosgens

manual/en-US/coding-standards/chapters/html.md

@@ -51,7 +51,7 @@ Use a new line for every block, list, or table element, and indent every such ch
 	</ul>
 </div>
 
-<!-- Bad - ul is a block element -->
+<!-- Bad -->
 <div><ul>
   <li>Home</li>
   <li>Blog</li>
@@ -79,4 +79,4 @@ Highlight todos by using the keyword TODO, eg:
   <li>Home</li>
   <li>Blog</li>
 </ul>
-```
+```