Update README.md

README.md

@@ -2,6 +2,7 @@
 This application based on [react-native-cx](https://github.com/applean/react-native-cx) which is my another project in [Applean Contest](https://applean.cn)
 is made for mdcc conference. 
 
+## Preview
 ### Splash
 <img src="http://ww4.sinaimg.cn/large/005zU9b3jw1f7y74sjof2j30ku112wgg.jpg" width="340" height="600"/>
 ### Home
@@ -13,15 +14,18 @@ is made for mdcc conference.
 &nbsp;&nbsp;&nbsp;
 <img src="http://ww1.sinaimg.cn/large/005zU9b3gw1f7y6ql9sltj30ku1127ai.jpg" width="340" height="600"/>
 
-# Usage
+## Download
+* iOS: [iTunes](https://itunes.apple.com/cn/app/mdccclient/id1155880311?l=en&mt=8)
+
+## Usage
 2. `npm install` install required libraries
 3. `react-native run-ios` of course, you need OSX system to run ios.
 
 **If you encounter some problems while experiencing, just contact me for help or [create issues](https://github.com/Bob1993/mdcc-client/issues) in this repository.**
 
-# Thanks
-1. [liaohuqiu](https://github.com/liaohuqiu) provides data support
-2. [okernel](https://github.com/okernel)'s help
+## Thanks
+* [liaohuqiu](https://github.com/liaohuqiu) provides data support
+* [okernel](https://github.com/okernel)'s help
 
 # License
 *BSD*