Update README.md

README.md

@@ -31,7 +31,7 @@ There's a few optional arguments, and one mandatory one:
 ### Substitution
 
 As most Navidrome installations live within a Docker environment, generally with a mounted music folder, the filepaths Navidrome sees may not line up with the actual folder structure. 
-For these cases, the flag `-r | --replace` can be used to 'translate' between Docker environment and real folder structure.
+For these cases, the flags `-f` and `-t` can be used to 'translate' between Docker environment and real folder structure.
 
 An example: suppose your music folder lives in `/data/music` and your Navidrome configuration has this folder mounted under `/media/drive/music`, like so:
 ```yaml