remove trailing whitespace

Author: boehs

discord_slash/utils/manage_commands.py

@@ -156,7 +156,7 @@ def create_option(name: str,
     :param required: Whether this option is required.
     :param choices: Choices of the option. Can be empty.
     :return: dict
-    
+
     .. note::
         a field with the value of ``False`` for ``required`` will return NOTHING if it is not filled. if you wish to have it default to something if not filled,_
         append ``argname = None`` to the ``async def`` portion of the command.