Tweak changelog message

Author: chrish42

doc/source/whatsnew/v0.25.0.rst

@@ -37,7 +37,7 @@ Other Enhancements
 - :class:`RangeIndex` has gained :attr:`~RangeIndex.start`, :attr:`~RangeIndex.stop`, and :attr:`~RangeIndex.step` attributes (:issue:`25710`)
 - :class:`datetime.timezone` objects are now supported as arguments to timezone methods and constructors (:issue:`25065`)
 - :meth:`DataFrame.query` and :meth:`DataFrame.eval` now supports quoting column names with backticks to refer to names with spaces (:issue:`6508`)
-- :func:`merge_asof` now gives a clearer error message when merge keys are categoricals that are not equal (:issue:`26136`)
+- :func:`merge_asof` now gives a more clear error message when merge keys are categoricals that are not equal (:issue:`26136`)
 
 .. _whatsnew_0250.api_breaking: