fix docs

Author: malmans2

doc/whats-new.rst

@@ -33,7 +33,7 @@ Deprecations
 
 Bug fixes
 ~~~~~~~~~
-- Fix bug where to zarr would modify chunks of datetime variables (:issue:`8230`, :pull:`8253`).
+- Fix bug where :py:meth:`Dataset.to_zarr` would modify chunks of datetime variables (:issue:`8230`, :pull:`8253`).
   By `Mattia Almansi <https://github.com/malmans2>`_.
 
 Documentation