update doc

.gitignore

@@ -1,4 +1,4 @@
 .DS_Store*
-node_modules
-coverage
-.idea
+node_modules/
+coverage/
+.idea/

README.md

@@ -1,8 +1,10 @@
 # Koa HTML Minifier 2
 
-[![npm version](https://img.shields.io/npm/v/koa-html-minifier2.svg)](https://www.npmjs.com/package/koa-html-minifier2)
+[![License MIT](https://img.shields.io/npm/l/koa-html-minifier2.svg)](https://github.com/zhuweiyou/koa-html-minifier2/blob/master/LICENSE)
 [![Build Status](https://travis-ci.org/zhuweiyou/koa-html-minifier2.svg?branch=master)](https://travis-ci.org/zhuweiyou/koa-html-minifier2)
 [![Coverage Status](https://coveralls.io/repos/github/zhuweiyou/koa-html-minifier2/badge.svg?branch=master)](https://coveralls.io/github/zhuweiyou/koa-html-minifier2?branch=master)
+[![NPM Version](https://img.shields.io/npm/v/koa-html-minifier2.svg)](https://www.npmjs.com/package/koa-html-minifier2)
+[![NPM Download](https://img.shields.io/npm/dt/koa-html-minifier2.svg)](https://www.npmjs.com/package/koa-html-minifier2)
 
 **It is the like as [koajs/html-minifier](https://github.com/koajs/html-minifier), and supports `koa 2.x`.**
 

package.json

@@ -1,7 +1,7 @@
 {
   "name": "koa-html-minifier2",
   "description": "minify HTML responses like some crazy guy",
-  "version": "1.0.5",
+  "version": "1.0.6",
   "author": {
     "name": "zhuweiyou",
     "email": "i@zhuweiyou.com"