Fix Westley's entries (dead link, .gitignore)

The main link was dead but looking at the Internet Wayback Machine I
found that he changed domains and it's still valid. One entry had a
different URL but with a quick check I could not determine that it had
anything to do with him so I changed it to his own domain (which I
verified is his).

The 2001/westley/.gitignore was also updated as it has other source
files that are generated by the commands in the try section.

1996/westley/README.md

@@ -5,7 +5,7 @@
     St. Paul, MN  55105
     USA
 
-    http://www.visi.com/~westley/index.html
+    http://www.westley.org
 
 ## To build: