convert spoiler language and towards deobfuscation language

1990/pjr/README.md

@@ -55,7 +55,7 @@ By use of pointers to functions returning a struct of pointers
 to functions!
 
 
-### Spoiler:
+### Deobfuscation:
 
 This program prints out the string:
 

1990/pjr/index.html

@@ -425,7 +425,7 @@ well.</p>
 it is done?</p>
 <p>By use of pointers to functions returning a struct of pointers
 to functions!</p>
-<h3 id="spoiler">Spoiler:</h3>
+<h3 id="deobfuscation">Deobfuscation:</h3>
 <p>This program prints out the string:</p>
 <blockquote>
 <p>the quick brown fox jumped over the lazy dog</p>