fixed typos in contribute section

Author: rossengeorgiev

index.html

@@ -95,8 +95,8 @@ <h2>Contribute</h2>
             <p>
                 Did you know the tracker is open-source? Check it out on
                 <a href="https://github.com/rossengeorgiev/habitat-mobile-tracker">github/habitat-mobile-tracker</a>.
-                Bug reports, suggetion and pull request are welcome. You can also
-                find us on IRC in <u>#highaltitude</u> at <u>irc.freenode.org</u>.
+                Bug reports, suggetions and pull requests are welcome. You can also
+                find us on IRC in <a href="http://webchat.freenode.net/?channels=highaltitude">#highaltitude</a> at <b>irc.freenode.org</b>.
             </p>
         </div>
     </div>