Fix review comments

Author: hiroyuki-sato

docs/index.html

@@ -21,9 +21,7 @@ <h2>Customization</h2>
   <h2>Development Guides</h2>
   <ul>
     <li><a href="https://docs.google.com/document/d/1oKpvgstKlgmgUUja8hYqTqWxtwsgIbONoUaEj8lO0FE/edit">Embulk Input Plugin Development Guide</a></li>
-  </ul>
-  <ul>
-    <li><a href="https://github.com/embulk/embulk/blob/master/docs/eeps/eep-0000.md">EEPs(Embulk Enhancement Proposals)</a></li>
+    <li><a href="https://github.com/embulk/embulk/blob/master/docs/eeps/eep-0000.md">Embulk Enhancement Proposals (EEPs)</a></li>
   </ul>
 </section>