Update README.md

Author: gaearon

README.md

@@ -16,7 +16,7 @@ The npm package defaults to the CommonJS build.
 However it also includes a pre-minified UMD build in the `dist` folder.
 The UMD build exports a global `window.ReactDnDHTML5Backend` when imported as a `<script>` tag.
 
-If you’d rather not use npm, you can use [npmcdn](http://npmcdn.com/) to access the UMD build directly: [ReactDnDHTML5Backend.min.js](https://npmcdn.com/react-dnd-html5-backend@2.0.2/dist/ReactDnDHTML5Backend.min.js).  
+If you’d rather not use npm, you can use [npmcdn](http://npmcdn.com/) to access the UMD build directly: [ReactDnDHTML5Backend.min.js](https://npmcdn.com/react-dnd-html5-backend@latest/dist/ReactDnDHTML5Backend.min.js).  
 You may point your Bower config to it.
 
 ## Browser Support