Fix a couple of versionadded/versionchanged related markup errors.
diff --git a/Doc/c-api/arg.rst b/Doc/c-api/arg.rst
index 2bcbbad..b28aa5f 100644
--- a/Doc/c-api/arg.rst
+++ b/Doc/c-api/arg.rst
@@ -264,7 +264,8 @@
Convert a Python byte, represented as a :class:`bytes` or
:class:`bytearray` object of length 1, to a C :c:type:`char`.
- .. versionchanged:: 3.3 Allow :class:`bytearray` objects
+ .. versionchanged:: 3.3
+ Allow :class:`bytearray` objects.
``C`` (:class:`str` of length 1) [int]
Convert a Python character, represented as a :class:`str` object of
@@ -324,7 +325,7 @@
This accepts any valid Python value. See :ref:`truth` for more
information about how Python tests values for truth.
- .. versionchanged:: 3.3
+ .. versionadded:: 3.3
``(items)`` (:class:`tuple`) [*matching-items*]
The object must be a Python sequence whose length is the number of format units