update readme with instructions for config.php

README.md

@@ -3,6 +3,10 @@ TS3-Autochannel
 
 This little PHP script automatically creates Channels if all others are occupied and also deletes them after they aren't needed any more.
 
+To use it copy config.sample.php to config.php and adjust it accordingly.  
+The docker image loads /app/config.php
+
+
 There are some requirements to the channel structure:
 
 1. A root channel