Add new developer

[maxrjones]

What is your issue?

@andersy005 or @jhamman could you please add @s-kganz to https://github.com/orgs/xarray-contrib/teams/xbatcher-devs/members? @weiji14 suggested that he could help with maintenance of the library. I do not have permissions to update the team.

[weiji14]

Just realized I'm in @xarray-contrib/xbatcher-admins so can add @s-kganz individually to the repo (you should have received an invite). Still need an org-level admin I think to add him to the @xarray-contrib/xbatcher-devs team.