address minor comments

doc/source/whatsnew/v0.24.0.txt

@@ -74,7 +74,7 @@ Other Enhancements
 - :func:`Series.mode` and :func:`DataFrame.mode` now support the ``dropna`` parameter which can be used to specify whether NaN/NaT values should be considered (:issue:`17534`)
 - :func:`to_csv` now supports ``compression`` keyword when a file handle is passed. (:issue:`21227`)
 - :meth:`Index.droplevel` is now implemented also for flat indexes, for compatibility with :class:`MultiIndex` (:issue:`21115`)
-- :meth:`Series.droplevel` and `DataFrame.droplevel` are now implemented (:issue:`20342`)
+- :meth:`Series.droplevel` and :meth:`DataFrame.droplevel` are now implemented (:issue:`20342`)
 - Added support for reading from Google Cloud Storage via the ``gcsfs`` library (:issue:`19454`)
 - :func:`to_gbq` and :func:`read_gbq` signature and documentation updated to
   reflect changes from the `Pandas-GBQ library version 0.5.0

pandas/core/generic.py

@@ -742,9 +742,11 @@ def droplevel(self, level, axis=0):
         ...:     [5, 6, 7, 8],
         ...:     [9, 10, 11, 12]
         ...: ]).set_index([0, 1]).rename_axis(['a', 'b'])
+
         >>> df.columns = pd.MultiIndex.from_tuples([
         ...:    ('c', 'e'), ('d', 'f')
         ...:], names=['level_1', 'level_2'])
+
         >>> df
         level_1   c   d
         level_2   e   f