onboarding task update

[Jquinny]

Proposed changes

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updated the onboarding task to be more self contained and motivated. Also cleaned up the rest of the onboarding file as well.

Checklist

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• [x] I have read the CONTRIBUTING doc
• [x] Lint and unit tests pass locally with my changes
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] I have added the necessary documentation (if appropriate)
• [x] Any changes to main have been merged into my branch

Further comments

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