* xresources.texi (GTK resources): Fix broken link.

Thanks to Mariano Street for reporting this and suggesting
the correct link.

doc/emacs/ChangeLog

+2013-02-27  Bastien Guerry  <bzg@gnu.org>
+
+	* xresources.texi (GTK resources): Fix broken link.
+
 2013-02-22  Glenn Morris  <rgm@gnu.org>
 
 	* ack.texi (Acknowledgments):

doc/emacs/xresources.texi

@@ -507,7 +507,7 @@ those are governed by normal X resources (@pxref{Resources}).
 
   The following sections describe how to customize GTK+ resources for
 Emacs.  For details about GTK+ resources, see the GTK+ API document at
-@uref{http://developer.gnome.org/doc/API/2.0/gtk/gtk-Resource-Files.html}.
+@uref{http://developer.gnome.org/gtk2/stable/gtk2-Resource-Files.html}.
 
   In GTK+ version 3, GTK+ resources have been replaced by a completely
 different system.  The appearance of GTK+ widgets is now determined by