update readme

Author: peakchen90

README.ZH-CN.md

@@ -4,6 +4,7 @@
 [![Travis (.org) branch](https://img.shields.io/travis/peakchen90/babel-plugin-react-directives/master.svg)](https://travis-ci.org/peakchen90/babel-plugin-react-directives)
 [![Codecov](https://img.shields.io/codecov/c/github/peakchen90/babel-plugin-react-directives.svg)](https://codecov.io/gh/peakchen90/babel-plugin-react-directives)
 [![npm](https://img.shields.io/npm/v/babel-plugin-react-directives.svg)](https://www.npmjs.com/package/babel-plugin-react-directives)
+![node](https://img.shields.io/node/v/babel-plugin-react-directives.svg)
 [![GitHub](https://img.shields.io/github/license/mashape/apistatus.svg)](https://github.com/peakchen90/babel-plugin-react-directives/blob/master/LICENSE)
 
 > [English document](./README.md)

README.md

@@ -5,6 +5,7 @@ A babel plugin that provides some directives for react(any JSX), similar to dire
 [![Travis (.org) branch](https://img.shields.io/travis/peakchen90/babel-plugin-react-directives/master.svg)](https://travis-ci.org/peakchen90/babel-plugin-react-directives)
 [![Codecov](https://img.shields.io/codecov/c/github/peakchen90/babel-plugin-react-directives.svg)](https://codecov.io/gh/peakchen90/babel-plugin-react-directives)
 [![npm](https://img.shields.io/npm/v/babel-plugin-react-directives.svg)](https://www.npmjs.com/package/babel-plugin-react-directives)
+![node](https://img.shields.io/node/v/babel-plugin-react-directives.svg)
 [![GitHub](https://img.shields.io/github/license/mashape/apistatus.svg)](https://github.com/peakchen90/babel-plugin-react-directives/blob/master/LICENSE)
 
 > [中文文档](./README.ZH-CN.md)