remove internal references from doc/install.html

and doc/contribute.html.

add #go-nuts to help section on nav bar.

R=r
http://go/go-review/1025035

doc/contribute.html

@@ -242,8 +242,6 @@ the Mercurial Queues extension.
 
 <h3>Configure the extension</h3>
 
-[NOTE FOR BEFORE LAUNCH: <a href="http://www/~rsc/internal-hg.html">Read this instead</a>.]
-
 <p>Edit <code>$GOROOT/.hg/hgrc</code> to add:</p>
 
 <pre>
@@ -257,8 +255,6 @@ The Mercurial configuration file format does not allow environment variable subs
 
 <h3>Log in to the code review site.</h3>
 
-[NOTE FOR BEFORE LAUNCH: <a href="http://www/~rsc/internal-hg.html">Read this instead</a>.]
-
 <p>
 The code review server uses a Google Account to authenticate.
 (If you can use the account to

doc/install.html

@@ -147,9 +147,8 @@ If that fails, visit the <a href="http://mercurial.selenic.com/wiki/Download">Me
 <p>Make sure the <code>$GOROOT</code> directory does not exist or is empty.
 Then check out the repository:</p>
 
-<!-- TODO(go-dev): Replace with http://go.googlecode.com/ for launch. -->
 <pre>
-$ hg clone http://r45/ $GOROOT
+$ hg clone -r release https://go.googlecode.com/hg/ $GOROOT
 </pre>
 
 <h2>Install Go</h2>

lib/godoc/godoc.html

@@ -101,8 +101,9 @@
 
     <li class="blank">&nbsp;</li>
     <li class="navhead">Help</li>
-    <li><a href="http://code.google.com/p/go/issues/list">Issue tracker</a></li>
+    <li>#go-nuts on irc.freenode.net</li>
     <li><a href="http://groups.google.com/group/golang-nuts">Go Nuts mailing list</a></li>
+    <li><a href="http://code.google.com/p/go/issues/list">Issue tracker</a></li>
 
     <li class="blank">&nbsp;</li>
     <li class="navhead">Go code search</li>