Added option to only set footer, and clear both

docs/scarpet/api/Auxiliary.md

@@ -277,9 +277,12 @@ Sends the player (or players if `players` is a list) a title of a specific type,
    Executing with those will set the times to the specified ones.
    Note that `actionbar` type doesn't support changing times (vanilla bug, see [MC-106167](https://bugs.mojang.com/browse/MC-106167)).
 
-### `display_title(players, 'player_list', header, footer),`
+### `display_title(players, 'player_list')`
+### `display_title(players, 'player_list', footer)`
+### `display_title(players, 'player_list', header, footer)`
 
 Changes the header and footer of the player list.
+When no `header` and `footer` is specified, they will be reset.
 Keep in mind this would interfere with carpet's loggers, so if you are using this, you need to keep them off.
 
 ### `logger(msg), logger(type, msg)`