Correct URL in info.rkt now that ziggy branch is closed

Author: pdarragh

langs/info.rkt

@@ -3,7 +3,7 @@
 (define collection 'multi)
 (define deps (list "base" "rackunit" "redex-lib"))
 (define build-deps
-  (list "https://github.com/cmsc430/www.git?path=ziggy#ziggy"))
+  (list "https://github.com/cmsc430/www.git?path=ziggy#main"))
 
 ;; Outlaw is omitted here because it depends on libraries that are a pain
 ;; to ensure are set up properly and we don't want students to see failing