xarray.Dataset.to_zarr: docs for "Appending to existing Zarr stores”???

[nasa-nccs-cds]

In the description of the 'region' argument to xarray.Dataset.to_zarr the last sentence states: See “Appending to existing Zarr stores” in the reference documentation for full details. I have not been able to find this reference in the reference docs or anywhere else- I'm starting to suspect that it doesn't exist. Can anyone point me to a location for this alleged documentation?

[keewis]

here it is: https://xarray.pydata.org/en/stable/io.html#appending-to-existing-zarr-stores. Since we started to link to the narrative documentation in the See Also section, I guess we could add a link there, too.