Refactor and update onboarding for all roles#2878

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jameshochadel merged 20 commits intomainfrom refactor-onboarding

Jan 30, 2024

+344-520

Commits on Jan 24, 2024

Remove outdated links, add more recent ones, and normalize link format
jameshochadel
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Commits on Jan 25, 2024

Factor out common onboarding steps from engineer onboarding
jameshochadel
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Put team-comms-related items earlier and gate Cloud Ops admin accounts
jameshochadel
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Clarify two-issue system in description, since it shows in GitHub UI
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Commits on Jan 26, 2024

Commits on Jan 30, 2024

Small fixes from review with Sean
jameshochadel
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