[doc]: home readme, update detail

README.md

@@ -4,13 +4,27 @@
 
 ## What's this?
 
-This is a interview Index about Node.js which you should know while you are intersting about the Job of ElemeFE.
+We were looking for developer which had three years development experience with Node.js & Backend dev.
+
+This is the interview Index about it, and it shows you how to pass the Node.js interview of ElemeFE.
 
 ## What is ElemeFE?
 
-It means Frontend team of Eleme (饿了么) which seems like the bigest takeaway company.
+It means Frontend team of Eleme (饿了么) which seems like the bigest takeaway company of China.
 
-#### Support languages
+There are some public projects of Eleme:
+
+* [Element](http://element.eleme.io/#/en-US) A Vue.js 2.0 UI Toolkit for Web.
+* [Element-react](https://github.com/eleme/element-react) React.js version for Element.
+* [Mint UI](http://mint-ui.github.io/#!/en) Mobile UI elements for Vue.js.
+* [restc](https://elemefe.github.io/restc/) A server-side middleware to visualize REST requests.
+* [vue-infinite-scroll](https://github.com/ElemeFE/vue-infinite-scroll) An infinite scroll directive for vue.js.
+
+As you see, we are frontend team, but we'v been doing some backend job to support frontend to gain more.
+
+#### Language support
+
+This index is translated from chinese, We'd say sorry that the translation is just started, you may not able to read it completely. BTW, it is welcome to help us to improve the translations.
 
 ##### [English](sections/en-us/)
 ##### [简体中文](sections/zh-cn/)