Update readme.md

Author: ckken

readme.md

@@ -1,7 +1,8 @@
 #  Flutter UI <img src="android/app/src/main/res/mipmap-ldpi/ic_launcher.png" height="20"> <sup>v1.0.2</sup>
+> flutter 开发者社区     
 
+<img src="readme/1.0.2.png" />
 
-> flutter 开发者社区
 ## 功能清单  
 + widget 组件教程
 + 多语言切换
@@ -13,9 +14,6 @@
 ![安卓包下载](readme/apk.png)   
 [安卓包下载](https://github.com/efoxTeam/flutter-ui/releases/download/v1.0.2/app-release.apk)
 
-## Demo 预览 
-<img src="readme/1.0.2/1.jpg" width="200" /> <img src="readme/1.0.2/2.jpg" width="200" /> <img src="readme/1.0.2/3.jpg" width="200" />  
-<img src="readme/1.0.2/4.jpg" width="200" /> <img src="readme/1.0.2/5.jpg" width="200" /> <img src="readme/1.0.2/6.jpg" width="200" />
 
 ## 项目相关
 + [apk包历史版本](https://github.com/efoxTeam/flutter-ui/releases)