Change opening html element to closing.

[boykoc]

Issue:
Currently line 16 opens a new <section> element. Browsers are adding the necessary closing tags but this results in an extra empty section element when the html is rendered:

<section class="tags">
  <ul class="tag-list">    
      <li>
        <a class="tag" href="/dataset?tags=tag">tag</a>
      </li>    
  </ul>
  <section class="tags"></section> // extra element
</section> // browser generated closing element

Suggested Change:
Change opening element to closing element.