update pic + add link

Author: gidili

war/img/biopics/giovanni.png

@@ -615,12 +615,15 @@ <h2>Stephen Larson</h2>
                     </p>
                 </div>
                 <div class="span3 text-center people-card">
-                    <img class=" img-rounded img-responsive img-center" src="img/biopics/giovanni.jpg" alt="">
+                    <img class=" img-rounded img-responsive img-center" src="img/biopics/giovanni.png" alt="">
                     <h2>Giovanni Idili</h2>
                     <p>
                         <a href="https://www.linkedin.com/in/giovanniidili/" class="no-a-effect" target="_blank">
                             <i class="fa fa-linkedin-square fa-2x social" aria-hidden="true"></i>
                         </a>
+                        <a href="https://twitter.com/john_idol" class="no-a-effect" target="_blank">
+                            <i class="fa fa-twitter-square fa-2x social" aria-hidden="true"></i>
+                        </a>
                     </p>
                 </div>
                 <div class="span3 text-center people-card">