Adds download links

Author: Kevin Morris

README.md

@@ -14,6 +14,23 @@ Please note that this project is released with a [Contributor Code of Conduct](C
 ##Requirements
 Requires jQuery 1.7+.
 
+##Download
+* **Development:** [src/jquery.form.js
+](https://github.com/jquery-form/form/blob/master/src/jquery.form.js)
+* **Production/Minified:** [dist/jquery.form.min.js
+](https://github.com/jquery-form/form/blob/master/dist/jquery.form.min.js)
+
+###CDN
+* **v4.0.0**
+`<script src="https://cdn.rawgit.com/jquery-form/form/v4.0.0/dist/jquery.form.min.js" integrity="sha384-VbVFC0lW+zWNPASj3BNeyyhq8bfMBuPS/oKvruIvimT8gB9mee2oQtrFarxCzL5m" crossorigin="anonymous"></script>`
+
+* **v3.51.0**
+`<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery.form/3.51/jquery.form.min.js" integrity="sha384-PtoF94KNPetQqtyWrt7MCIFhajxLf9jnI6qysmzN5x7hcSRpKj7hML3cJi+BgBne" crossorigin="anonymous"></script>`
+or
+`<script src="https://oss.maxcdn.com/jquery.form/3.51/jquery.form.min.js" integrity="sha384-+MH/JJ/f/MpqUtleUQmbvWeijy4xwPHS7BTjaTaBYGhAvgLxeSQqxDYkainJGDee" crossorigin="anonymous"></script>`
+or
+`<script src="https://cdn.jsdelivr.net/jquery.form/3.51/jquery.form.min.js" integrity="sha384-+MH/JJ/f/MpqUtleUQmbvWeijy4xwPHS7BTjaTaBYGhAvgLxeSQqxDYkainJGDee" crossorigin="anonymous"></script>`
+
 ---
 
 ##API
@@ -206,10 +223,6 @@ The Form Plugin supports use of [XMLHttpRequest Level 2]("http://www.w3.org/TR/X
 
 ---
 
-##CDN Support
-`<script src="//oss.maxcdn.com/jquery.form/3.50/jquery.form.min.js"></script>`
-
-
 ##Contributors
 This project has transferred from [github.com/malsup/form](https://github.com/malsup/form/), courtesy of [Mike Alsup](https://github.com/malsup).  
 See [CONTRIBUTORS](CONTRIBUTORS.md) for details.