Removing #css from moz irc and adding link to moz developer guide.

index.html

@@ -128,7 +128,7 @@ <h2 id="answer_questions_and_participate_in_conversations_on_irc" class="subhed"
             <p><a href="http://richard.esplins.org/siwi/2011/07/08/getting-started-freenode-irc/">How to get started with freenode and irc</a></p>
             <ul>
               <li><b>Freenode IRC channels:</b> #html5 / #css / #javascript / #whatwg / #jquery / #yui / #dojo / <span title="browser based game development">#bbg</span> (on <a href="http://webchat.freenode.net">irc.freenode.net</a>) </li>
-              <li id="mozilla_irc"><b>Mozilla IRC channels:</b> #css / #js (on <a href="http://irc.mozilla.org">irc.mozilla.org</a>)</li>
+              <li id="mozilla_irc"><b>Mozilla IRC channel:</b> #js (on <a href="http://irc.mozilla.org">irc.mozilla.org</a>)</li>
             </ul>
 
             <h2 id="how_to_ask_for_help" class="subhed">How to ask for help</h2>
@@ -381,6 +381,7 @@ <h2 id="contribute_to_browsers" class="subhed">Contribute to browsers</h2>
             <li><a href="https://developer.mozilla.org/en/Gecko_BugAThon">Reduce test cases for Mozilla</a></li>
             <li>Hack on Gecko
               <ul>
+                <li>Read the developer guide for <a href="https://developer.mozilla.org/En/Developer_Guide">getting started with Gecko development</a>.
                 <li>a <a href="https://bugzilla.mozilla.org/buglist.cgi?quicksearch=%22[mentor%3D%22&list_id=1800469">list of &#8220;good first bugs&#8221; for Firefox/Gecko</a>
                 <li>Join #introduction and #developers on <a href="#mozilla_irc">Mozilla's IRC server</a>
               </ul>