Add message that multi sound edit is supported

Author: MathewHDYT

README.md

@@ -6,7 +6,7 @@
 [![GitHub downloads](https://img.shields.io/github/downloads/MathewHDYT/Unity-Audio-Manager-UAM/all.svg?style=flat-square)](https://github.com/MathewHDYT/Unity-Audio-Manager-UAM/releases/)
 
 # Unity Audio Manager (UAM)
-Used to play/change/stop/mute/... sounds at certain circumstances or events in 2D and 3D simply via. code.
+Used to play/change/stop/mute/... one or multiple sounds at a certain circumstance or event in 2D and 3D simply via. code.
 
 ## Introduction
 Nearly all games need music and soundeffects and this small and easily integrated Audio Manager can help you play sounds in Unity for your game quick and easily. For each method there is a description on how to call it and how to use it correctly for your game in the given section in the documentation