docs(README): add minimal jQueryUI CDN link

Author: thgreasi

README.md

@@ -10,7 +10,7 @@ This directive allows you to sort an array with drag & drop.
 
 **Notes:**
 > JQuery must be included before AngularJS.  
-> JQueryUI dependecies include core, widget, mouse & sortable. Creating a [custom build](http://jqueryui.com/download/#!version=1.10&components=1110000010000000000000000000000000) will [greatly reduce](https://github.com/angular-ui/ui-sortable/issues/154#issuecomment-40279430) the required file size. 
+> JQueryUI dependecies include [core](http://api.jqueryui.com/category/ui-core/), [widget](http://api.jqueryui.com/jQuery.widget/), [mouse](http://api.jqueryui.com/mouse/) & [sortable](http://api.jqueryui.com/sortable/). Creating a [custom build](http://jqueryui.com/download/#!version=1.10&components=1110000010000000000000000000000000) will [greatly reduce](https://github.com/angular-ui/ui-sortable/issues/154#issuecomment-40279430) the required file size. ([CDN](http://www.jsdelivr.com/) links for comparison: [full](http://cdn.jsdelivr.net/g/jquery.ui@1.10) vs  [minimal](http://cdn.jsdelivr.net/g/jquery.ui@1.10%28jquery.ui.core.min.js+jquery.ui.widget.min.js+jquery.ui.mouse.min.js+jquery.ui.sortable.min.js%29))
 
 ## Usage