Fix heading level of 'Try' section

It was agreed to be '## Try:' but there were many files where it was
'### Try:'. This has been corrected.

1994/westley/README.md

@@ -18,7 +18,7 @@ wraparound.
 There is no running as such. See below.
 
 
-### Try:
+## Try:
 
 But for something more interesting try compiling it with
 different cc arguments.  For example: