Fix another typo noticed by SilentGhost

Doc/whatsnew/3.5.rst

@@ -1477,7 +1477,7 @@ either an another :class:`~pathlib.Path` object, or a string::
 
 (Contributed by Vajrasky Kok and Antoine Pitrou in :issue:`19775`.)
 
-The :meth:`Path.mkdir() <pathlib.Path.mkdir>` method how accepts a new optional
+The :meth:`Path.mkdir() <pathlib.Path.mkdir>` method now accepts a new optional
 *exist_ok* argument to match ``mkdir -p`` and :func:`os.makedirs`
 functionality.  (Contributed by Berker Peksag in :issue:`21539`.)