Update README.md

Author: cloudwebrtc

README.md

@@ -34,14 +34,14 @@ Open https://0.0.0.0:8086.
 ### Compile from Source
 - Clone the repository, run `make`.  
 - Run `./bin/server-{platform}-{arch}` and open https://0.0.0.0:8086 to use html5 demo.
-- If you need to test mobile app, please check the [webrtc-flutter-demo](https://github.com/cloudwebrtc/flutter-webrtc-demo/tree/golang). 
+- If you need to test mobile app, please check the [webrtc-flutter-demo](https://github.com/cloudwebrtc/flutter-webrtc-demo). 
 
 ## Note
 This example can only be used for LAN testing. If you need to use it in a production environment, you need more testing and and deploy an available turn server.
 
 ## screenshots
 # iOS/Android
-<img width="180" height="320" src="https://raw.githubusercontent.com/cloudwebrtc/flutter-webrtc-server/master/screenshots/ios-01.jpeg"/> <img width="180" height="320" src="https://raw.githubusercontent.com/cloudwebrtc/flutter-webrtc-server/master/screenshots/ios-02.jpeg"/> <img width="180" height="320" src="https://raw.githubusercontent.com/cloudwebrtc/flutter-webrtc-server/master/screenshots/android-01.png"/> <img width="180" height="320" src="https://raw.githubusercontent.com/cloudwebrtc/flutter-webrtc-server/master/screenshots/android-02.png"/>
+<img width="180" height="320" src="screenshots/ios-01.jpeg"/> <img width="180" height="320" src="screenshots/ios-02.jpeg"/> <img width="180" height="320" src="screenshots/android-01.png"/> <img width="180" height="320" src="screenshots/android-02.png"/>
 
 # PC/HTML5
-<img width="360" height="293" src="https://raw.githubusercontent.com/cloudwebrtc/flutter-webrtc-server/master/screenshots/chrome-01.png"/> <img width="360" height="293" src="https://raw.githubusercontent.com/cloudwebrtc/flutter-webrtc-server/master/screenshots/chrome-02.png"/>
+<img width="360" height="293" src="screenshots/chrome-01.png"/> <img width="360" height="293" src="screenshots/chrome-02.png"/>