Update whats-new.rst

Co-authored-by: Justus Magin <[email protected]>

Author: max-sixty

doc/whats-new.rst

@@ -34,7 +34,7 @@ Bug fixes
 - Fix error when encoding an empty :py:class:`numpy.datetime64` array
   (:issue:`10722`, :pull:`10723`). By `Spencer Clark
   <https://github.com/spencerkclark>`_.
-- Propagation coordinate attrs in :py:meth:`xarray.Dataset.map` (:issue:`9317`, :pull:`10602`).
+- Propagate coordinate attrs in :py:meth:`xarray.Dataset.map` (:issue:`9317`, :pull:`10602`).
   By `Justus Magin <https://github.com/keewis>`_.
 - Allow ``combine_attrs="drop_conflicts"`` to handle objects with ``__eq__`` methods that return
   non-bool values (e.g., numpy arrays) without raising ``ValueError`` (:pull:`10726`).