place entry index.html at the bottom of secondary inventory

2018/burton2/index.html

@@ -534,12 +534,12 @@ are not recognised when written as <code>-rs</code> in prose).</p>
 <h2 id="secondary-files">Secondary files</h2>
 <ul>
 <li><a href="2018_burton2.tar.bz2">2018_burton2.tar.bz2</a> - download entry tarball</li>
-<li><a href="index.html">index.html</a> - this web page</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/README.md">README.md</a> - markdown source for this web page</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/discrepancies.md">discrepancies.md</a> - markdown source for discrepancies.html</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/.entry.json">.entry.json</a> - description of entry in JSON</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/.gitignore">.gitignore</a> - list of files that should not be committed under git</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2018/burton2/.path">.path</a> - directory path from top directory</li>
+<li><a href="index.html">index.html</a> - this web page</li>
 </ul>
 
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