doc: add help page, update project page

R=golang-dev, kyle, r, bradfitz
CC=golang-dev
https://golang.org/cl/5729053
diff --git a/doc/docs.html b/doc/docs.html
index a820e35..52ec28e 100644
--- a/doc/docs.html
+++ b/doc/docs.html
@@ -66,7 +66,7 @@
 </p>
 
 <h3 id="wiki"><a href="http://code.google.com/p/go-wiki/wiki">Go Language Community Wiki</a></h3>
-<p>A wiki full of useful information maintained by the Go community.</p>
+<p>A wiki maintained by the Go community.</p>
 
 <h2 id="articles">Go Articles</h2>
 
@@ -186,9 +186,6 @@
 <h3 id="projects"><a href="http://godashboard.appspot.com/project">Go Project Dashboard</a></h3>
 <p>A list of external Go projects including programs and libraries.</p>
 
-<h3 id="wiki"><a href="http://code.google.com/p/go-wiki/wiki">Go Language Community Wiki</a></h3>
-<p>A wiki full of useful information maintained by the Go community.</p>
-
 <h3 id="irc"><a href="irc:irc.freenode.net/go-nuts">Go IRC Channel</a></h3>
 <p><b>#go-nuts</b> on <b>irc.freenode.net</b> is the official Go IRC channel.</p>