Added support placeholder.

doc/source/index.rst

@@ -43,6 +43,7 @@ Documentation
    ./basic_usage
    ./plot
    ./api
+   ./support
    ./license
 
 

doc/source/support.rst

@@ -0,0 +1,21 @@
+Support
+==========
+
+A mailing list is available on Google Groups.
+
+.. raw:: html
+
+   <iframe id="forum_embed"
+      src="javascript:void(0)"
+      scrolling="no"
+      frameborder="0"
+      width="900"
+      height="700">
+    </iframe>
+    <script type="text/javascript">
+      document.getElementById('forum_embed').src =
+         'https://groups.google.com/a/ucar.edu/forum/embed/?place=forum/wrfpython-talk'
+         + '&showsearch=true&showpopout=true&showtabs=false'
+         + '&parenturl=' + encodeURIComponent(window.location.href);
+    </script>
+