Add CND instructions

Author: Foxandxss

README.md

@@ -26,6 +26,13 @@ If you are not using npm (you should), you can use bower:
 $ bower install angular-toastr
 ```
 
+To use a CDN, you can include the next two lines:
+
+```html
+<script src="https://npmcdn.com/angular-toastr/dist/angular-toastr.tpls.js"></script>
+<link rel="stylesheet" href="https://npmcdn.com/angular-toastr/dist/angular-toastr.css" />
+```
+
 Or you can grab the latest [release](https://github.com/Foxandxss/angular-toastr/releases) and add both the `css` and `javascript` file:
 
 ```html