update header

Author: zerunniu

_config.yaml

@@ -1,5 +1,5 @@
 # site properties and page defaults
-title: DUAL
+# title: Distributed compUting, optimizAtion, and Learning (DUAL) group at USyd
 subtitle: Distributed compUting, optimizAtion, and Learning (DUAL) group at USyd
 description: please Input context
 header: images/background.jpg

_includes/footer.html

@@ -23,13 +23,18 @@
     {% endfor %}
   </div>
 
-  <div>
+  <!-- <div>
     &copy; {{ site.time | date: "%Y" }}
     {{ site.title }}
     &nbsp; | &nbsp; Built with
     <a href="https://github.com/greenelab/lab-website-template">
       Lab Website Template
     </a>
+  </div> -->
+
+  <div>
+    &copy; {{ site.time | date: "%Y" }}
+    {{ site.title }}
   </div>
 
   <input