update index.html and .winner.json per recent manifest changes

2012/hou/index.html

@@ -218,7 +218,7 @@ this license:</p>
 <pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
 <p>For more information, see:
 https://creativecommons.org/licenses/by-sa/4.0/</p>
-<section id="footnotes" class="footnotes footnotes-end-of-document"
+<aside id="footnotes" class="footnotes footnotes-end-of-document"
 role="doc-endnotes">
 <hr />
 <ol>
@@ -234,7 +234,7 @@ href="#fnref2" class="footnote-back" role="doc-backlink">↩︎</a></p></li>
 Cox, Regular Expression Matching: the Virtual Machine Approach</a><a
 href="#fnref3" class="footnote-back" role="doc-backlink">↩︎</a></p></li>
 </ol>
-</section>
+</aside>
 <!-- START: this line starts content generated by: bin/gen-inventory.sh -->
 
 <h1 id="inventory-for-2012hou"><a name="inventory"></a>Inventory for