Add Plexus .github

[ascheman]

as it is used in Plexus projects and therefore nice to have it at hand when working on GH workflows.

Note, this replaces #18 (partially)

[hboutemy]

can we call it github instead of .github in the directory tree?

[ascheman]

I was thinking about dot.github (have seen that on other repositories to make it visible). What's your opinion?

[ascheman]

I was thinking about dot.github (have seen that on other repositories to make it visible). What's your opinion?

Any opinion about this, @hboutemy ? I am fine with both, it was just a thought.

[ascheman]

Resolved in the follow-up PR #49: I went with your suggestion and renamed the local checkout path from .github to the visible github (commit 43cd665). I had to open #49 because I lost write access to the fork backing this PR, so #21 could no longer be updated.

[Copilot]

Pull request overview

Adds the Codehaus Plexus organization’s shared .github repository to this checkout/manifest so contributors have Plexus-wide GitHub Actions workflows available locally alongside other Plexus sources.

Changes:

• Add plexus/.github to the default.xml manifest (remote plexus).
• Update README.md’s example directory tree to include plexus/.github.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
README.md	Documents the additional plexus/.github directory in the resulting checkout layout.
default.xml	Adds the codehaus-plexus/.github repository to the Plexus section of the repo manifest.

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[ascheman]

Closing in favour of #49, which supersedes this PR.

#21 was raised from a fork I no longer have write access to and can therefore no longer be updated. #49 is rebased onto current master and addresses @hboutemy's review — the local checkout path is renamed from .github to the visible github (commit 43cd665).