lib/godoc: link to Projects wiki page instead of dashboard

R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/7139057

lib/godoc/package.html

@@ -213,7 +213,7 @@
 	{{end}}
 	</table>
 	{{if $.PDoc}}{{else}}
-	<p>Need more packages? Take a look at the <a href="http://godashboard.appspot.com/">Go Project Dashboard</a>.</p>
+	<p>Need more packages? Take a look at the <a href="http://code.google.com/p/go-wiki/wiki/Projects">Go Projects wiki page</a>.</p>
 	{{end}}
 {{end}}