`AbstractFileSystem.rm()` doc ambiguous - files, directories, both?

[keen85]

Hi,
I noticed that AbstractFileSystem.rm() docs is a little bit imprecise here:

The main description indicates that the method is meant to use files, but presence and description of recurse and maxdepth imply that it should also work for directories.

If it should works for both directories and files, this should reflect in the main description as well as description of path parameter.

filesystem_spec/fsspec/spec.py

Lines 1232 to 1246 in f84b99f

	def rm(self, path, recursive=False, maxdepth=None):
	"""Delete files.
	Parameters
	----------
	path: str or list of str
	File(s) to delete.
	recursive: bool
	If file(s) are directories, recursively delete contents and then
	also remove the directory
	maxdepth: int or None
	Depth to pass to walk for finding files to delete, if recursive.
	If None, there will be no limit and infinite recursion may be
	possible.
	"""