* lisp/play/gomoku.el: Update the URL in the comments (bug#21300).
;; about the squares where one may play, or else there is a known forced win
;; for the first player. This program has no such restriction, but it does not
;; know about the forced win, nor do I.
-;; See http://renju.nu/r1rulhis.htm for more information.
+;; See http://renju.se/rif/r1rulhis.htm for more information.
;; There are two main places where you may want to customize the program: key