convert spoiler language and towards deobfuscation language

2011/fredriksson/README.md

@@ -198,7 +198,8 @@ Just say
 
   (Btw, tcc has its roots in IOCCC...)
 
-### Obfuscations (a.k.a. spoilers...)
+
+### Deobfuscation
 
 * The initialized char array includes the source code of the real program,
   as well as its name and commands to build and run it, all

2011/fredriksson/index.html

@@ -536,7 +536,7 @@ C99, or long lines as an extension. This code has been tested on:</p></li>
 <li><p>AIX 5.3, IBM eServer p5-550, gcc 3.3.3 and AIX CC Version 6</p>
 <p>(Btw, tcc has its roots in IOCCC…)</p></li>
 </ul>
-<h3 id="obfuscations-a.k.a.-spoilers">Obfuscations (a.k.a. spoilers…)</h3>
+<h3 id="deobfuscation">Deobfuscation</h3>
 <ul>
 <li>The initialized char array includes the source code of the real program,
 as well as its name and commands to build and run it, all