Add a new demo image

Author: alies-dev

README.md

@@ -7,7 +7,7 @@
 
 Adds a Laravel Nova field for Unlayer to compose emails and landing pages.
 
-![image](https://s5.gifyu.com/images/unlayer.gif)
+![image](https://github.com/InteractionDesignFoundation/nova-unlayer-field/blob/master/resources/img/demo-800x592@8.gif)
 
 ## Installation
 
@@ -79,4 +79,4 @@ npm run watch
 
 ## License
 
-The MIT License (MIT). Please see [License File](LICENSE) for more information.
+The MIT License (MIT). Please see [License File](LICENSE) for more information.