Remove username, add "username" (tho it's not relevant)

get_playlist.py

@@ -21,7 +21,7 @@ def main(playlist_id: str):
 
     # don't edit scope, but edit user name and playlist_id!
     scope: str = "user-library-read"
-    username: str = "hntngprty"
+    username: str = "username"
 
     # get user auth token
     token: str = util.prompt_for_user_token(