DOC: add link to Developers Meeting (#6065)

Author: raybellwaves

doc/developers-meeting.rst

@@ -0,0 +1,20 @@
+Developers meeting
+------------------
+
+Xarray developers meet bi-weekly every other Wednesday.
+
+The meeting occurs on `Zoom <https://us02web.zoom.us/j/88251613296?pwd=azZsSkU1UWJZTVFKNnhIUVdZcENUZz09>`__.
+
+Notes for the meeting are kept `here <https://hackmd.io/@U4W-olO3TX-hc-cvbjNe4A/xarray-dev-meeting/edit>`__.
+
+There is a `GitHub issue <https://github.com/pydata/xarray/issues/4001>`__ for changes to the meeting.
+
+You can subscribe to this calendar to be notified of changes:
+
+* `Google Calendar <https://calendar.google.com/calendar/embed?src=ucar.edu_2gjd5fuugcj4ol6ij7knj8krn8%40group.calendar.google.com&ctz=America%2FLos_Angeles>`__
+* `iCal <https://calendar.google.com/calendar/ical/ucar.edu_2gjd5fuugcj4ol6ij7knj8krn8%40group.calendar.google.com/public/basic.ics>`__
+
+.. raw:: html
+
+   <iframe id="calendariframe" src="https://calendar.google.com/calendar/embed?ctz=local&amp;src=ucar.edu_2gjd5fuugcj4ol6ij7knj8krn8%40group.calendar.google.com" style="border: 0" width="800" height="600" frameborder="0" scrolling="no"></iframe>
+   <script>document.getElementById("calendariframe").src = document.getElementById("calendariframe").src.replace("ctz=local", "ctz=" + Intl.DateTimeFormat().resolvedOptions().timeZone)</script>

doc/index.rst

@@ -45,6 +45,7 @@ computing.
    Xarray Internals <internals/index>
    Development Roadmap <roadmap>
    Team <team>
+   Developers Meeting <developers-meeting>
    What’s New <whats-new>
    GitHub repository <https://github.com/pydata/xarray>