Update doc/source/whatsnew/v1.1.4.rst

Co-authored-by: Daniel Saxton <[email protected]>

Author: PCerles

doc/source/whatsnew/v1.1.4.rst

@@ -14,7 +14,7 @@ including other versions of pandas.
 
 Fixed regressions
 ~~~~~~~~~~~~~~~~~
-- Fixed regression in :func:`merge` on merging datetime index with empty DF (:issue:`36895`)
+- Fixed regression in :func:`merge` on merging datetime index with empty :class:`DataFrame` (:issue:`36895`)
 
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