add GH numbers

Author: topper-123

doc/source/whatsnew/v2.1.0.rst

@@ -35,7 +35,7 @@ Other enhancements
 - Let :meth:`DataFrame.to_feather` accept a non-default :class:`Index` and non-string column names (:issue:`51787`)
 - :class:`api.extensions.ExtensionArray` now has a :meth:`~api.extensions.ExtensionArray.map` method (:issue:`51809`)
 - Improve error message when having incompatible columns using :meth:`DataFrame.merge` (:issue:`51861`)
-- :meth:`Categorical.map` and :meth:`CategoricalIndex.map` now have a ``na_action`` parameter (:issue:``)
+- :meth:`Categorical.map` and :meth:`CategoricalIndex.map` now have a ``na_action`` parameter (:issue:`44279`)
 
 .. ---------------------------------------------------------------------------
 .. _whatsnew_210.notable_bug_fixes:
@@ -131,7 +131,7 @@ Bug fixes
 
 Categorical
 ^^^^^^^^^^^
-- Bug in :meth:`Series.map` , where the value of the ``na_action`` parameter was not used if the series held a :class:`Categorical` (:issue:``).
+- Bug in :meth:`Series.map` , where the value of the ``na_action`` parameter was not used if the series held a :class:`Categorical` (:issue:`22527`).
 -
 
 Datetimelike