Corrected the "View Session" url. (#225)

Author: aman9875

oshc/main/templates/base.html

@@ -28,7 +28,7 @@
           <li class="dropdown">
             <a href="#" class="dropdown-toggle" data-toggle="dropdown">Sessions <span class="caret"></span></a>
             <ul class="dropdown-menu" role="menu">
-              <li><a href="https://www.youtube.com/channel/UC1_IAby-9me3iICtxuiDL5Q" target="_blank">View Session</a></li>
+              <li><a href="https://www.youtube.com/channel/UC1_IAby-9me3iICtxuiDL5Q/videos" target="_blank">View Session</a></li>
               <li><a href="{% url 'request_session' %}" target="_blank">Request a Session</a></li>
             </ul>
           </li>