Update image path

Fixes #25

Author: IvayloG

HTMLSamples/dialog-window/api-and-events.html

@@ -35,7 +35,7 @@
     <!--igDialog target element-->
 	<div id="dialog" class="sb-min-tablet-portrait">
         <p>
-            <img src="../../images/dialog-window/content.jpg">
+            <img src="../../../../images/dialog-window/content.jpg">
         </p>
         <button id="closeDialog"></button>
 	</div>