[m-rev.] www diff: Add link to Mercury on reddit

[Paul Bone]

I've also re-ordered the links on this page, placing the "more official"
ones earlier in the list.  In this case more official means that we have
some way to moderate the communities.  This is true for Twitter, IRC and
Google+.

include/contact.inc:
    As above.
---
 include/contact.inc | 50 +++++++++++++++++++++++++++++++-------------------
 1 file changed, 31 insertions(+), 19 deletions(-)

diff --git a/include/contact.inc b/include/contact.inc
index 83dbd54..cd64110 100644
--- a/include/contact.inc
+++ b/include/contact.inc
@@ -1,3 +1,6 @@
+<!--
+  vim: ft=html sts=2 sw=2 et
+-->
 <h2>Contact</h2>
 
 <p>
@@ -124,7 +127,7 @@ note that there will be some delay while your post is reviewed.
 </ul>
 </ul>
 
-<h3>Search the Archives</h3>
+<h4>Search the Archives</h4>
 
 <p>
 Please use the search bar below to search the archives:
@@ -141,6 +144,14 @@ Please use the search bar below to search the archives:
 
 <h3>Other communities and social networks</h3>
 
+<h4>Twitter</h4>
+
+<p>
+The <a href="https://twitter.com/MercuryLang">@MercuryLang</a>
+twitter account will make announcements of news, releases and
+other related things.
+</p>
+
 <h4>IRC</h4>
 
 <p>
@@ -151,6 +162,25 @@ Connect to <code>irc.freenode.net</code> and join the <code>#mercury</code>
 channel.
 </p>
 
+<h4>Google+</h4>
+
+<p>
+There is a
+<a href="https://plus.google.com/communities/108576397306370583348">
+Mercury community
+</a>
+on Google+.
+</p>
+
+<h4>Reddit</h4>
+
+<p>
+There is a
+<a href="https://www.reddit.com/r/mercury/">
+Mercury subreddit</a>
+on the popular link-sharing site <a href="https://reddit.com">reddit</a>.
+</p>
+
 <h4>stackoverflow.com</h4>
 
 <p>
@@ -180,24 +210,6 @@ blog by Chris King tackles various problems and explains how his elegant
 Mercury solutions are constructed.
 </p>
 
-<h4>Twitter</h4>
-
-<p>
-The <a href="https://twitter.com/MercuryLang">@MercuryLang</a>
-twitter account will make announcements of news, releases and
-ROTD builds.
-</p>
-
-<h4>Google+</h4>
-
-<p>
-There is a
-<a href="https://plus.google.com/communities/108576397306370583348">
-Mercury community
-</a>
-on Google+.
-</p>
-
 <h4>GitHub</h4>
 
 <p>
-- 
2.7.4