Merge pull request #2 from SandroMachado/patch-1

Fix the screenshot in the project description

Author: samtstern

messaging/README.md

@@ -50,7 +50,7 @@ Use Firebase console to send FCM messages to device or emulator.
 
 Screenshots
 -----------
-<img src="app/src/main/fcm-sample.png" height="534" width="300"/>
+<img src="app/src/screen.png" height="534" width="300"/>
 
 Support
 -------