[UMBRELLA] Review/expand contribution guidance

[justaugustus]

I've left a few reviews/comments here and there on PRs and it's worth reviewing contribution guidelines, just to ensure everyone has the tools they need to effectively contribute to the project.

To be clear, we've got a lot of great documentation today.
Let's see if we can get even better!

Eventually, this could be abstracted as general guidance for all OpenSSF projects, similar to https://github.com/kubernetes/community.

For current and potential contributors/maintainers, please feel free to leave comments about what kind of doc improvements you'd like to see.

• Contributor ladder: community: Is there a contributor ladder? #1529 / Feature - Define Governance  #308
• Contributor review guidance: Reviewer/maintainer guidance/expectations #1552
• Code signoffs: Determine whether code sign-offs should be required/enforced #1533
• Handling copyright dates: Handling dates in copyright headers #1534
• Releasing:
  • Use Kubernetes release-notes tool for releases: Document scorecard release processes #1676
  • Document scorecard release processes: Use Kubernetes release-notes tool for releases #1677

cc: @azeemshaikh38 @inferno-chromium @justaugustus @laurentsimon @naveensrinivasan @olivekl @david-a-wheeler @jeffmendoza @vmbrasseur

[annabellegoth2boss]

I opened a related issue under the /foundation repo; not sure if that's the right place, but maybe has more "across-all-of-OSSF" scope?

[justaugustus]

I opened a related issue under the /foundation repo; not sure if that's the right place, but maybe has more "across-all-of-OSSF" scope?

Liked, subscribed, and hit the bell!
Thanks for cross-linking these, @annabellegoth2boss!

[github-actions]

This issue is stale because it has been open for 60 days with no activity.

[spencerschrock]

I believe most of these tasks are completed at this point in time.