add oplayer url

Author: yeungeek

README.md

@@ -34,7 +34,7 @@ ASCE1885 |    |  http://blog.csdn.net/asce1885   |
 qinjuning   |  |  http://blog.csdn.net/qinjuning   |         
 秋风的博客  |   |  http://blog.csdn.net/tangcheng_ok   |  
 任玉刚  |  https://github.com/singwhatiwanna   |  http://blog.csdn.net/singwhatiwanna |  Android开源  
-农民伯伯  |  https://github.com/over140  |  http://over140.cnblogs.com |  开源视频  Android中文api  
+农民伯伯  |  https://github.com/over140  |  http://over140.cnblogs.com |  [开源播放器](https://github.com/over140/OPlayer)  Android中文api  
 李宏伟  |  https://github.com/lihw  |  http://www.paper3d.net |  [Paper3D](https://github.com/lihw/FutureInterface)  
 代震军  |  https://github.com/daizhenjun  |  http://www.cnblogs.com/daizhj |  开源ImageFilter库 [Android](https://github.com/daizhenjun/ImageFilterForAndroid)