Update README.md

README.md

 # easyCV
       video recording and snapshot service,based on javaCV. 
       基于javaCV的视频录像和快照(截图)服务。
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+### 演示demo
+      1.[截图服务在线演示：eguid.cc/screenshot/test](http://eguid.cc/screenshot/test)<br />
+      2.[录像服务在线演示：eguid.cc/record/test](http://eguid.cc/record/test))<br />
+ 
 ### dependency library
       Core lib based on 'javacv 1.4.x',web service based on 'spring-boot 2.x'.