updated core members

Author: Abhiram824

_includes/core_members.html

@@ -11,6 +11,12 @@
       Kevin Lin
     </a>
   </div>
+  <div class="col-xs-3 authornames">
+    <a href="https://www.linkedin.com/in/abhiram-maddukuri-a987991ba/" align="middle">
+      <img src="assets/images/abhiram_maddukuri.jpg" class="img-circle img-responsive">
+      Abhiram Maddukuri
+    </a>
+  </div>
   <div class="col-xs-3 authornames">
     <a href="https://snasiriany.me/" align="middle">
       <img src="assets/images/soroush_nasiriany.png" class="img-circle img-responsive">