Clarify the name passed to autodoc-skip-member (#14629)

doc/usage/extensions/autodoc.rst

@@ -1498,7 +1498,8 @@ member should be included in the documentation by using the following event:
    :param obj_type: the type of the object which the docstring belongs to (one of
       ``'module'``, ``'class'``, ``'exception'``, ``'function'``, ``'decorator'``,
       ``'method'``, ``'property'``, ``'attribute'``, ``'data'``, or ``'type'``)
-   :param name: the fully qualified name of the object
+   :param name: the unqualified name of the member within the namespace of the
+      object being documented
    :param obj: the object itself
    :param skip: a boolean indicating if autodoc will skip this member if the
       user handler does not override the decision