update readme

README.md

@@ -1,3 +1,5 @@
+[中文](./README_CN.md)
+
 <h1 align="center">DataV</h1>
 
 <p align="center">
@@ -9,7 +11,12 @@
     </a>
 </p>
 
-<h2 align="center">Vue large screen data display component library</h2>
+## What is DataV?
+
+* DataV is a data **visualization** components library based on **Vue**.
+* Provide cool **SVG** borders and decorations.
+* Provide common **charts** such as line chart, etc..
+* flying line chart, carousel table and etc.
 
 ### Install with npm
 
@@ -17,4 +24,17 @@
 $ npm install @jiaminghi/data-view
 ```
 
-Detailed documents and examples can be viewed on the [HomePage](http://datav.jiaminghi.com).
+### use
+
+```js
+import Vue from 'vue'
+import DataV from '@jiaminghi/data-view'
+
+Vue.use(DataV)
+
+// Introduced on demand
+import { borderBox1 } from '@jiaminghi/data-view'
+Vue.use(borderBox1)
+```
+
+Detailed documents and examples can be viewed on the [HomePage](http://datav.jiaminghi.com).