feat: add README.zh-CN.md

Author: gywgithub

README.md

@@ -1,3 +1,5 @@
+English | [简体中文](./README.zh-CN.md)
+
 ## Vue D3 V5 Examples
 
 `Vue`   `D3`   `V5`   `Examples`
@@ -8,11 +10,11 @@ node: `v11.10.0`
 
 d3: `v5.9.1`
 
-### Online Preview
+### 在线预览
 
 https://gywgithub.github.io/vue-d3-examples/
 
-**Please use chrome browser**
+**请使用 Chrome 浏览器**
 
 ### Project setup
 ```
@@ -37,4 +39,8 @@ npm run build
 ### Code for lint check
 ```
 npm run lint
-```
+```
+
+## License
+
+[MIT License](https://github.com/gywgithub/vue-d3-examples/blob/master/LICENSE)

README.zh-CN.md

@@ -0,0 +1,46 @@
+简体中文 | [English](./README.md)
+
+## Vue D3 V5 Examples
+
+`Vue`   `D3`   `V5`   `Examples`
+
+npm: `v6.7.0`
+
+node: `v11.10.0`
+
+d3: `v5.9.1`
+
+### Online Preview
+
+https://gywgithub.github.io/vue-d3-examples/
+
+**Please use chrome browser**
+
+### Project setup
+```
+npm install
+```
+
+### npm run lint & npm run serve
+```
+npm run dev
+```
+
+### Compiles and hot-reloads for development
+```
+npm run serve
+```
+
+### Compiles and minifies for production (Support only deploy to GitHub)
+```
+npm run build
+```
+
+### Code for lint check
+```
+npm run lint
+```
+
+## License
+
+[MIT License](https://github.com/gywgithub/vue-d3-examples/blob/master/LICENSE)