Update README

README.md

@@ -47,11 +47,11 @@ Type `!commands` to print the following list of available commands.
 
 ### Adding sounds
 
-You can add sounds to the bot by typing `!add` and attaching a file. The file has to be an .mp3 file of less than 1MB.
+You can add sounds to the bot by typing `!add` and attaching a file. Accepted file formats and a limit to the size are configurable.
 
 ### Playing sounds
 
-Type `!sounds` to get a list of all sounds that are available to your bot. Play any sound by prefixing it with `!`, e.g. `!mysound`. Play a random sound with `!random`.
+Type `!sounds` to get a list of all sounds that are available to your bot. Play any sound by prefixing it with `!`, e.g. `!onlygame`. Play a random sound with `!random`.
 
 All sounds will be added to a queue and played in succession. To halt the playback and empty the queue type `!stop`.