doc: update install docs for Windows and Go 1, add golang-announce to /project
R=golang-dev, bradfitz, r, rsc
CC=golang-dev
https://golang.org/cl/5758044
diff --git a/doc/contrib.html b/doc/contrib.html
index 7a96b8d..b4bd47e 100644
--- a/doc/contrib.html
+++ b/doc/contrib.html
@@ -17,6 +17,15 @@
Go is distributed under a <a href="/LICENSE">BSD-style license</a>.
</p>
+<h3 id="announce"><a href="http://groups.google.com/group/golang-announce">Announcements Mailing List</a></h3>
+<p>
+A low traffic mailing list for important announcements, such as new releases.
+</p>
+<p>
+We encourage all Go users to subscribe to
+<a href="http://groups.google.com/group/golang-announce">golang-announce</a>.
+</p>
+
<h2 id="resources">Developer Resources</h2>
<h3 id="source"><a href="https://code.google.com/p/go/source">Source Code</a></h3>
