update other entry HTML files

Ran `make gen_other_html` to perform the above.

2013/hou/doc/example.html

@@ -520,6 +520,8 @@ appearance.</p>
 <p>The last line, well, is the output filename. Just remember to throw in two <code>]</code>s
 and don’t put a newline after it.</p>
 <pre><code>    ]]example.ppm</code></pre>
+<hr style="width:10%;text-align:left;margin-left:0">
+<p>Jump to: <a href="#">top</a></p>
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