convert spoiler filenames into deobfuscation filenames

2015/yang/index.html

@@ -475,7 +475,7 @@ of ~1MB, and take ~500MB of RAM to compile.</p>
 <p><a href="https://en.wikipedia.org/wiki/Computation_of_cyclic_redundancy_checks#CRC-32_algorithm">CRC32</a>
 of source code is embedded in the source code itself.</p>
 <p>The process of writing this program can be seen by opening
-<a href="spoiler.html">spoiler.html</a> in a browser that supports JavaScript.</p>
+<a href="deobfuscation.html">deobfuscation.html</a> in a browser that supports JavaScript.</p>
 <p>Code layout is inspired by <a href="https://clannad.fandom.com/wiki/Fuko_Ibuki">Ibuki
 Fuuko</a>, for her love of sea stars.</p>
 <!--
@@ -507,7 +507,7 @@ Fuuko</a>, for her love of sea stars.</p>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2015/yang/Makefile">Makefile</a> - entry Makefile</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2015/yang/prog.orig.c">prog.orig.c</a> - original source code</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2015/yang/try.sh">try.sh</a> - script to try entry</li>
-<li><a href="spoiler.html">spoiler.html</a> - spoiler web page</li>
+<li><a href="deobfuscation.html">deobfuscation.html</a> - Deobfuscation information web page</li>
 </ul>
 <h2 id="secondary-files">Secondary files</h2>
 <ul>