align center badges (#45)

* clean badges

* center badges

Co-authored-by: 沈唁 <52o@qq52o.cn>

Author: huan

source/huan/index.md

@@ -10,11 +10,21 @@ Huan is a serial entrepreneur, [active angel investor](http://pre-angel.com/peop
 
 [![Wechaty](https://wechaty.js.org/img/wechaty-logo.svg)](https://wechaty.js.org)
 
+{% raw %}
+<center>
+{% endraw %}
+
+[![Gitter](https://badges.gitter.im/wechaty/wechaty.svg)](https://gitter.im/wechaty/wechaty?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
+[![TypeScript](https://img.shields.io/badge/%3C%2F%3E-TypeScript-blue.svg)](https://www.typescriptlang.org/)
+[![ES Modules](https://img.shields.io/badge/ES-Modules-orange)](https://github.com/Chatie/tsconfig/issues/16)
 [![NPM Version](https://img.shields.io/npm/v/wechaty?color=brightgreen)](https://www.npmjs.com/package/wechaty)
 [![Downloads](https://img.shields.io/npm/dm/wechaty.svg?style=flat-square)](https://www.npmjs.com/package/wechaty)
-[![GitHub stars](https://img.shields.io/github/stars/wechaty/wechaty.svg?label=github%20stars)](https://github.com/wechaty/wechaty)
 [![Docker Pulls](https://img.shields.io/docker/pulls/wechaty/wechaty.svg?maxAge=2592000)](https://hub.docker.com/r/wechaty/wechaty/)
-[![ES Modules](https://img.shields.io/badge/ES-Modules-orange)](https://github.com/Chatie/tsconfig/issues/16)
+[![GitHub stars](https://img.shields.io/github/stars/wechaty/wechaty.svg?label=github%20stars)](https://github.com/wechaty/wechaty)
+
+{% raw %}
+</center>
+{% endraw %}
 
 Huan is the creator and core developer of [Wechaty](https://wechaty.js.org) [![Wechaty GitHub Stars](https://img.shields.io/github/stars/wechaty/wechaty.svg?style=social&label=)](https://github.com/wechaty/wechaty/stargazers/). Wechaty is a Conversational RPA SDK for chatbot makers. With only 6 lines of code, you can create a bot on the most popular IMs like [WeChat](https://wechaty.js.org/docs/puppet-providers/xp/), [Whatsapp](https://wechaty.js.org/docs/puppet-providers/whatsapp/), [WeCom](https://wechaty.js.org/docs/puppet-services/wxwork/), [Gitter](https://wechaty.js.org/docs/puppet-providers/gitter/), [QQ](https://wechaty.js.org/docs/puppet-providers/oicq/), [etc](https://wechaty.js.org/docs/puppet-providers).