faq: more up-to-date info about the Windows port

R=r
CC=golang-dev
https://golang.org/cl/961041

doc/go_faq.html

@@ -86,8 +86,8 @@ We understand that a significant fraction of computers in the world
 run Windows and it would be great if those computers could run Go
 programs.  A group of volunteers has made significant progress toward 
 porting Go to <a href="http://www.mingw.org/">MinGW</a>.
-You can follow their progress on the 
-<a href="http://groups.google.com/group/golang-nuts">mailing list</a>.
+You can follow their progress at the Go Wiki's
+<a href="http://code.google.com/p/go/wiki/WindowsPort">WindowsPort</a> page.
 </p>
 
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