convert spoiler language and towards deobfuscation language

1998/schnitzi/README.md

@@ -115,7 +115,8 @@ looping.  To see the resulting program run, redirect the output from
 
 and then compile it.
 
-### Spoilers And Hints:
+
+### Deobfuscation And Hints:
 
 The big key to this program is figuring out what the names of the
 functions ought to be; a bit of research may allow you to guess at