Fixed another forum link

docs/docs/index.xml

@@ -18,7 +18,7 @@
       The <a href="intro.html">introduction</a> contains everything you need to know to get
       started using the library.  However, if you have any questions, comments, or complaints feel free to 
       <a href='mailto:davis@dlib.net'>email me</a><web> or post in the 
-      sourceforge <a href='http://sourceforge.net/forum/?group_id=130373'>Forums</a></web>.
+      sourceforge <a href='http://sourceforge.net/p/dclib/discussion'>Forums</a></web>.
       
       
       </p>