Document onboarding process #3442 issue solved
Title: docs: Add onboarding guide and README link
Body: Short summary: Adds a concise onboarding guide for new Augur contributors and links it from the repository README to help newcomers find community, setup, and first-contribution resources more quickly.
What changed:
Added docs/onboarding.md — a short, actionable onboarding guide covering: joining the CHAOSS community (Slack, meetings, YouTube) running Augur locally (docs + Docker pointers) finding starter issues (first-timers-only, good first issue) where to ask for help and how to escalate pointers for more challenging work Updated README.md — inserted an "Onboarding for New Contributors" section linking to docs/onboarding.md. Why: This provides a clear, discoverable path for newcomers (derived from community suggestions) to get started contributing to Augur and reduces friction for first-time contributors. Relates to community discussion in issues #3442 and #3446.
Related issues / credit:
References: #3442, #3446 Contributor: @MoralCode (original suggestion) Files: docs/onboarding.md, README.md