update links from old repo to new one; add...

[nickboldt]

What does this PR do?

update links from old repo to new one; add deprecation notice in readme

Signed-off-by: Nick Boldt nboldt@redhat.com

Screenshot/screencast of this PR

N/A

What issues does this PR fix or reference?

N/A (or see commit message above for issue number)

How to test this PR?

N/A

PR Checklist

As the author of this Pull Request I made sure that:

• [x] The Eclipse Contributor Agreement is valid
• [x] Code produced is complete
• [x] Code builds without errors
• [ ] Tests are covering the bugfix
• [x] The repository devfile is up to date and works, if one exists
• [x] Sections What issues does this PR fix or reference and How to test this PR completed
• [x] Relevant user documentation updated
• [x] Relevant contributing documentation updated
• [x] CI/CD changes implemented, documented and communicated

Reviewers

Reviewers, please comment how you tested the PR when approving it.

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[nickboldt]

/bump patch