Update README.md

Author: bkdev98

README.md

@@ -6,6 +6,8 @@ Yes I heard you could use **self managed ConnectionService** thing. But since I'
 
 You could also wait for [this feature request](https://github.com/react-native-webrtc/react-native-callkeep/issues/43) from `react-native-callkeep` to be resolved and have an easier life.
 
+<img width="400" src="https://github.com/bkdev98/react-native-incoming-call/raw/master/incoming-call.jpg">
+
 ## Version 2 Breaking Changes
 
 Hello there! It's been a while since I first public version 1 of this library, which contains some bugs that I don't have much time to fix.