move details to demo project

move details to demo project

demo/ReadMe.md

 ## PADDLE MOBILE DEMOS
-
-### DEMO工程GITHUB仓库
-
-我们提供了新的[DEMO工程](https://github.com/xiebaiyuan/paddle-mobile-demo),用于演示各平台的使用
-
+- [ANDROID](https://github.com/xiebaiyuan/paddle-mobile-demo)
 ---
-
 ### 原DEMO下载路径
-- [ANDROID DEMO](http://mms-graph.bj.bcebos.com/paddle-mobile%2FPaddleMobile_Android.zip)
+- [ANDROID](http://mms-graph.bj.bcebos.com/paddle-mobile%2FPaddleMobile_Android.zip)
 
-- [IOS DEMO](http://mms-graph.bj.bcebos.com/paddle-mobile%2FPaddleMobileDemo_iOS.zip)
+- [IOS](http://mms-graph.bj.bcebos.com/paddle-mobile%2FPaddleMobileDemo_iOS.zip)
 
 - 原demo亦可使用getDemo.sh进行下载