Onboarding packet for Submission Working Group

[bms63]

How can we support new members coming to the Submissions WG?

Just joining the slack doesn't really give you a lot...

We need a history lesson. Data explanations, processes, etc.

We need a what we are currently doing?

Other stuff???

[parmsam-pfizer]

We now have a How to Join page that @rpodcast made where we could add this info. Closing #104 for now since we have the join.qmd we can maintain.