doc edits for GH10047

Author: jreback

doc/source/api.rst

@@ -492,6 +492,7 @@ These can be accessed like ``Series.dt.<property>``.
    Series.dt.to_pydatetime
    Series.dt.tz_localize
    Series.dt.tz_convert
+   Series.dt.normalize
 
 **Timedelta Properties**
 

doc/source/whatsnew/v0.16.1.txt

@@ -68,7 +68,7 @@ Enhancements
 - Allow ``Categorical.add_categories`` to accept ``Series`` or ``np.array``. (:issue:`9927`)
 
 - Add/delete ``str/dt/cat`` accessors dynamically from ``__dir__``. (:issue:`9910`)
-- Add ``normalize`` as a ``dt`` accessor method.
+- Add ``normalize`` as a ``dt`` accessor method. (:issue:`10047`)
 
 - ``DataFrame`` and ``Series`` now have ``_constructor_expanddim`` property as overridable constructor for one higher dimensionality data. This should be used only when it is really needed, see :ref:`here <ref-subclassing-pandas>`