Add xarray community dev meetings to calendar

[TomNicholas]

Closes scientific-python/learn.scientific-python.org#46 @jarrodmillman

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[jarrodmillman]

@TomNicholas Thanks! By the way, I plan to try to join your meeting this week. I am hoping to talk with the developer team about potentially being a "core project" for the SPECs: https://scientific-python.org/specs/core-projects/

It shouldn't take much time. And, if there isn't time in the agenda this week, no worries.

[TomNicholas]

Great! Sounds exciting - I should see you there.

[TomNicholas]

@jarrodmillman we discussed xarray potentially being a "core" project in our meeting today: the core dev team were unanimously in favour! We definitely want to be able to endorse SPECs, and likely want to contribute to them / write them. So let us know what the next steps are there.

(I would have emailed you but couldn't easily find an email for you online)