Re-add a calendar invite link

This is a tiny thing, but I got to thinking: we fixed the calendar invite that was pointing to the old Zoom link here (thanks, @onlydole!):

* https://github.com/cncf/research-user-group/pull/38/files

While this is good because people aren't being sent to the wrong place, the CNCF Community platform doesn't have a calendar invite that folks can put on their calendar to get reminded about the meeting -- they have to remind themselves or create their own invite or something.

I'm happy to recreate an invite that correctly points at the CNCF Community platform (I realize now that it's just the "publish" feature on an invite, nothing fancy). However, I'd be the owner of the invite, and I just wanted to check if there was an official CNCF account that should own the invite.

Happy to either:
1. provide the text for the invite if someone else feels they should set it up and own it.
2. create it all, set it up, add the links back to the Research User Group page and then transfer the ownership of the calendar item to whatever email address should actually own it.
3. or just happy to own the invite in perpetuity

Just looking for a +1 on any of these ideas.

Start by reviewing PR #38 and the Research User Group page to understand the current calendar-link setup. Confirm which account should own a published CNCF Community platform invite and what text and links it should contain; the work is done when the invite is published with the correct meeting link and connected back to the Research User Group page.

Written by the indexing model from the issue text.