files needed to move kargo to k8s

RELEASE.md

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+# Release Process
+
+The Kargo Project is released on an as-needed basis. The process is as follows:
+
+1. An issue is proposing a new release with a changelog since the last release
+2. At least on of the [OWNERS](OWNERS) must LGTM this release
+3. An OWNER runs `git tag -s $VERSION` and inserts the changelog and pushes the tag with `git push $VERSION`
+4. The release issue is closed
+5. An announcement email is sent to `kubernetes-dev@googlegroups.com` with the subject `[ANNOUNCE] kargo $VERSION is released`