Added GPL and Django logos to the about page

apps/main/templates/about.html

@@ -22,6 +22,11 @@
     <div class="tc">
         <img src="{{ MEDIA_URL }}images/392336_7079-small.png"/>
     </div>
+    <div class="tc">
+        <img src="{{ MEDIA_URL }}images/gplv3-127x51.png"/>
+        <img src="{{ MEDIA_URL }}images/djangopowered126x54.gif"/>
+    </div>
+
 </div>
 {% endblock %}
 {% block footer %}