Update people.html

Author: sergiomaffeis

people.html

@@ -114,7 +114,7 @@ <h2>People</h2>
 						</p>
 					</div>
 					<div class="col-4 col-12-medium">
-						<span class="image left"><img src="images/adam.jpg" alt=""></span>
+						<span class="image left"><img src="images/kevin.jpg" alt=""></span>
 						<p><b>Yunan Peng</b> is a PhD student at <b>Imperial</b> under the supervision of Dr. Maffeis. 
 							He received his MEng in Electronic and Information Engineering from Imperial. 
 							Yunan’s research is focused on cyberattack prediction, specifically combining contextual-awareness techniques and generative models.