small updates according to comments

Author: topper-123

doc/source/whatsnew/v0.24.0.rst

@@ -1102,12 +1102,11 @@ Deprecations
 
 - :attr:`MultiIndex.labels` has been deprecated and replaced by :attr:`MultiIndex.codes`.
   The functionality is unchanged. The new name better reflects the natures of
-  these codes and makes the ``MultiIndex`` API more similar to the API for
-  :class:`CategoricalIndex`(:issue:`13443`).
+  these codes and makes the ``MultiIndex`` API more similar to the API for :class:`CategoricalIndex`(:issue:`13443`).
   As a consequence, other uses of the name ``labels`` in ``MultiIndex`` have also been deprecated and replaced with ``codes``:
   - You should initialize a ``MultiIndex`` instance using a parameter named ``codes`` rather than ``labels``.
-  - :meth:`MultiIndex.set_labels` has been deprecated in favor of :meth:`MultiIndex.set_codes`
-  - for method :meth:`MultiIndex.copy`, the ``labels`` parameter has been deprecated and replaced by a ``codes`` parameter.
+  - ``MultiIndex.set_labels`` has been deprecated in favor of :meth:`MultiIndex.set_codes`.
+  - For method :meth:`MultiIndex.copy`, the ``labels`` parameter has been deprecated and replaced by a ``codes`` parameter.
 - :meth:`DataFrame.to_stata`, :meth:`read_stata`, :class:`StataReader` and :class:`StataWriter` have deprecated the ``encoding`` argument. The encoding of a Stata dta file is determined by the file type and cannot be changed (:issue:`21244`)
 - :meth:`MultiIndex.to_hierarchical` is deprecated and will be removed in a future version (:issue:`21613`)
 - :meth:`Series.ptp` is deprecated. Use ``numpy.ptp`` instead (:issue:`21614`)