Fixes #25

Update another sample with the correct image path so both Embedded sample and jsfiddle will work.

Author: IvayloG

HTMLSamples/dialog-window/angular.html

@@ -28,7 +28,7 @@
         <ig-dialog id="dialog1" header-text="Foo" height="325px">
             <content>
                 <p>
-                    <img style="width: 220px" src="../../images/samples/dialog-window/content.jpg">
+                    <img style="width: 220px" src="https://igniteui.github.io/help-samples/images/dialog-window/content.jpg">
                 </p>
                 <input style="margin: 5px"></input>
             </content>

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="https://igniteui.github.io/help-samples/images/dialog-window/content.jpg">
         </p>
         <button id="closeDialog"></button>
 	</div>