Edit release note

Author: Daniel Saxton

doc/source/whatsnew/v1.0.2.rst

@@ -31,7 +31,7 @@ Bug fixes
 **Categorical**
 
 - Fixed bug where :meth:`Categorical.from_codes` improperly raised a ``ValueError`` when passed nullable integer codes. (:issue:`31779`)
-- Fixed bug where :meth:`Categorical` constructor would raise a ``TypeError`` when given a numpy array containing ``NA``. (:issue:`31927`)
+- Fixed bug where :meth:`Categorical` constructor would raise a ``TypeError`` when given a numpy array containing :class:`NA`. (:issue:`31927`)
 
 **MultiIndex**