Update README.md

README.md

@@ -75,7 +75,7 @@ To add Sling to your project, simply add ```sling.min.js``` to your project and
 To add Sling via CDN like jsDelivr use the following ```script``` tag:
 
 ```html
-<script src="https://cdn.jsdelivr.net/gh/puckowski/Sling.js@1.8/dist/sling.min.js" crossorigin="anonymous"></script>
+<script src="https://cdn.jsdelivr.net/gh/puckowski/Sling.js@1.9/dist/sling.min.js" crossorigin="anonymous"></script>
 ```
 
 For XHR capabilities, also include ```sling-xhr.min.js``` or replace ```sling.min.js``` with ```sling-full.min.js```.