添加《How to write jQuery plugin》 @i5ting

Author: justjavac

Diff for: README.md

@@ -240,6 +240,7 @@
 * jQuery
     * [jQuery 解构](http://www.cn-cuckoo.com/deconstructed/jquery.html)
     * [简单易懂的JQuery魔法](http://www.nowamagic.net/librarys/books/contents/jquery)
+    * [How to write jQuery plugin](http://i5ting.github.io/How-to-write-jQuery-plugin/build/jquery.plugin.html)
 * Node.js
     * [Node入门](http://www.nodebeginner.org/index-zh-cn.html)
     * [七天学会NodeJS](http://nqdeng.github.io/7-days-nodejs/)