implement lazyloading

templates/people.html

@@ -22,7 +22,7 @@
 		  </div>
 		<div class="col image-min-dimensions">
             <img class="img-responsive w-100 image-max-dimensions" 
-                 src="{{ p['image'] }}" alt="{{ p['title'] }}"></img>
+                 realsrc="{{ p['image'] }}" alt="{{ p['title'] }}"></img>
             	</div>
 		</div>
         {% endfor %}