Update GDG info

Author: Giuseppe Di Guglielmo

images/gdg.jpg

@@ -99,9 +99,10 @@ <h3> Columbia University </h3>
 		<a href="javascript:showhide('gdg')"> Giuseppe Di Guglielmo</a> (PhD, Computer Science)
     	<div id="gdg" style="display:none;"> <br>
 			<ul>
-				<li> <b>Position</b>: Associate Scientist </li>
-				<li> <b>Interests</b>: XXXX </li>
+				<li> <b>Position</b>: Associate Research Scientist </li>
+				<li> <b>Interests</b>: System design, High-Level Synthesis </li>
 			</ul>
+            <a href="images/gdg.jpg" class="image image-centered"><img src="images/gdg.jpg" height="300" alt="" /></a>
     	</div>
     	<hr>
 		<!-- ******************************************************* -->