Manifest updates

Change 'entry web page' to 'this web page' as per discussion on GitHub.

Rebuilt .entry.json and index.html files for all entries.

2018/burton2/index.html

@@ -531,7 +531,7 @@ are not recognised when written as <code>-rs</code> in prose).</p>
 </ul>
 <h2 id="secondary-files">Secondary files</h2>
 <ul>
-<li><a href="index.html">index.html</a> - entry home page</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 index.html</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>