Update launch file step of onboarding task

[Jquinny]

Proposed changes

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just clarified some stuff

Checklist

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• [ ] I have read the CONTRIBUTING doc
• [ ] 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)
• [ ] Any changes to main have been merged into my branch

Further comments

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