enable the lightGallery Zoom feature

assets/js/script.js

@@ -11,7 +11,8 @@ $(document).ready(function(){
             event.preventDefault();
             // initialize gallery
             $('#output').lightGallery({
-                selector: 'a'
+                selector: 'a',
+                zoom: true,
             });
             $(this).click();
         });

index.html

@@ -20,6 +20,7 @@
         <script src="./assets/js/jquery-3.2.0.min.js"></script>
         <script src="./assets/js/uncompress/uncompress.js"></script>
         <script src="./assets/js/lightgallery.min.js"></script>
+        <script src="./assets/js/lg-zoom.min.js"></script>
         <script src="./assets/js/script.js"></script>
     </body>
 </html>