Update index.html

Author: kasperlegarth

index.html

@@ -53,7 +53,7 @@ <h5>How many items do you want?</h5>
         <div id="playground-result" class="result"></div>
     </div>
     <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
-    <script src="instastory.js"></script>
+    <script src="instastory.js" crossorigin></script>
     <script src="demo/demo.js"></script>
 </body>
-</html>
+</html>