updating site to point to forums

docs/mainpage.dox

@@ -20,6 +20,8 @@ or dependent tasks.
 
 @ref Tutorial
 
+@ref DiscussionForum
+
 @ref MailingList
 
 @ref Extending
@@ -68,6 +70,15 @@ appropriate functions in memory.c
 
 */
 
+/**
+@page DiscussionForum ENet Discussion Forum
+
+The <a href="http://jbserver.com/forums/ForumHome.asp?ForumId=6">
+ENet discussion forum</a> provides a convenient place ask for help,
+share code and ideas, or report bugs.
+
+*/
+
 /**
 @page MailingList ENet Related Mailing Lists