更新到v2.1：

1. 细节优化及已知bug修复
2. 增加背景边框设置功能 fix #10

Author: iwgang

README.md

@@ -11,7 +11,7 @@ Android Countdown Widget，Use canvas draw，Supports Multiple styles
 [Download demo apk](https://raw.githubusercontent.com/iwgang/CountdownView/master/demoapk/Demo_2.1.apk)
 
 ### Screenshot
-![](https://raw.githubusercontent.com/iwgang/CountdownView/master/screenshot/s_main.png)  
+<img src="https://raw.githubusercontent.com/iwgang/CountdownView/master/screenshot/s_main.png" width="400px" height="650px"/>
 
 ![](https://raw.githubusercontent.com/iwgang/CountdownView/master/screenshot/g_config.gif) 
 ![](https://raw.githubusercontent.com/iwgang/CountdownView/master/screenshot/g_config2.gif)  

README_CN.md

@@ -11,7 +11,7 @@ Android倒计时控件，使用Canvas绘制，支持多种样式
 [下载DemoAPK](https://raw.githubusercontent.com/iwgang/CountdownView/master/demoapk/Demo_2.1.apk)
 
 ### Screenshot
-![](https://raw.githubusercontent.com/iwgang/CountdownView/master/screenshot/s_main.png)  
+<img src="https://raw.githubusercontent.com/iwgang/CountdownView/master/screenshot/s_main.png" width="400px" height="650px"/>
 
 ![](https://raw.githubusercontent.com/iwgang/CountdownView/master/screenshot/g_config.gif) 
 ![](https://raw.githubusercontent.com/iwgang/CountdownView/master/screenshot/g_config2.gif)