TST: GH26055 corrected doc errors and test pep8 errors

Author: yhaque1213

doc/source/whatsnew/v0.25.0.rst

@@ -388,7 +388,7 @@ Groupby/Resample/Rolling
 - Ensured that result group order is correct when grouping on an ordered ``Categorical`` and specifying ``observed=True`` (:issue:`25871`, :issue:`25167`)
 - Bug in :meth:`pandas.core.window.Rolling.min` and :meth:`pandas.core.window.Rolling.max` that caused a memory leak (:issue:`25893`)
 - Bug in :func:`idxmax` and :func:`idxmin` on :meth:`DataFrame.groupby` with datetime column would return incorrect dtype (:issue:`25444`, :issue:`15306`)
-- Bug in :meth:`pandas.core.window._Rolling_and_Expanding.count` that did not include axis parameter in constructor call (:issue:`13503`) 
+- Bug in :meth:`pandas.core.window._Rolling_and_Expanding.count` that did not include axis parameter in constructor call (:issue:`13503`)
 
 Reshaping
 ^^^^^^^^^

pandas/tests/test_window.py

@@ -675,7 +675,8 @@ def test_rolling_axis_count(self):
         expected = DataFrame({'x': [1.0, 2.0, 2.0], 'y': [1.0, 2.0, 2.0]})
         tm.assert_frame_equal(result, expected)
 
-        # not specifiying axis and making axis=rows are expected to yeild the same result
+        # not specifiying axis and making axis=rows
+        # are expected to yeild the same result
         result = df.rolling(2, axis='rows').count()
         tm.assert_frame_equal(result, expected)