convert spoiler language and towards deobfuscation language

1998/tomtorfs/README.md

@@ -99,7 +99,7 @@ Count the number of non-whitespace characters in the source
 file to find out what dark force drove me to write this ;-).
 
 
-### Spoiler
+### Deobfuscation
 
 First of all, if you run a C beautifier on the program (thereby of course losing
 the nice code shape I worked so hard on ;-) ) the code will become a bit more

1998/tomtorfs/index.html

@@ -445,7 +445,7 @@ valid exit value to indicate failure (replace them with <code>EOF</code> resp.
 <h3 id="special-notes">Special notes</h3>
 <p>Count the number of non-whitespace characters in the source
 file to find out what dark force drove me to write this ;-).</p>
-<h3 id="spoiler">Spoiler</h3>
+<h3 id="deobfuscation">Deobfuscation</h3>
 <p>First of all, if you run a C beautifier on the program (thereby of course losing
 the nice code shape I worked so hard on ;-) ) the code will become a bit more
 readable.</p>