docs/website: update news with 2016.11-rc1 release e-mail link

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

docs/website/news.html

@@ -20,7 +20,8 @@
 	<p>We have a new release candidate! Lots of
 	  changes all over the tree, see
 	  the <a href="http://git.buildroot.net/buildroot/plain/CHANGES?id=2016.11-rc1">CHANGES</a>
-	  file for details.
+	  file for details, read the
+	  <a href="http://lists.busybox.net/pipermail/buildroot/2016-November/176453.html">announcement</a>.
 	</p>
 
 	<p>Head to the <a href="/downloads/">downloads page</a> to pick up the