add cname and update facebook group url

Author: razzius

CNAME

@@ -0,0 +1 @@
+www.codetswana.com

_includes/footer.html

@@ -2,7 +2,7 @@
   <div class="inner row">
     <div class="col-md-2 col-md-offset-4">
       <a href="https://github.com/codetswana"><img src="img/github.png"></a>
-      <a href="https://www.facebook.com/groups/1423535481253672"><img src="img/facebook.png"></a>
+      <a href="https://www.facebook.com/groups/codetswana"><img src="img/facebook.png"></a>
     </div>
     <div class="col-md-2">
       &copy; 2014</span>