Update README.md

Author: DomingoMG

README.md

@@ -1,6 +1,6 @@
 SoundVolumeView that displays general information and the current volume level for all active sound components in your system, and allows you to instantly mute and unmute them.
 
-![](https://github.com/DomingoMG/sound_volume_view/blob/assets/SoundVolumeView.png?raw=true)
+![](https://github.com/DomingoMG/sound_volume_view/blob/main/assets/SoundVolumeView.png?raw=true)
 
 ## Expressions of gratitude
 First of all thanks to nirsoft for creating SoundVolumeView.exe. Without this it would not be possible for Windows.
@@ -41,4 +41,4 @@ await soundVolumeView.mute( devices[index] );
 #### You can also listen to the capture sound.
 ```dart
 await soundVolumeView.setListenToThisDevice(devices[index], listen: true);
-```
+```