added community link: Making Celery and PyMongo play nicely together

docs/homepage/community.html

@@ -56,6 +56,8 @@ pageTracker._trackPageview();
     <div class="column">
         <h2>Community Links</h2>
 
+<p class="communitylink"><a href="http://www.howsthe.com/blog/2010/dec/13/making-celery-pymongo-play-nicely/
+">Making Celery and PyMongo play nicely together</a></p>
 <p class="communitylink"><a href="http://trespams.com/2010/11/28/celery-mini-tutorial/
 ">Celery: Mini Tutorial (Catalan)</a></p>
 <p class="communitylink"><a href="http://ericholscher.com/blog/2010/nov/11/building-django-app-server-chef-part-4/