doc: mention rebasing of v?.x-staging post release
Mention that the staging branch should be rebased on top of the release branch after merging a release proposal.
/cc @nodejs/release
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Mention that the staging branch should be rebased on top of the release branch after merging a release proposal.
/cc @nodejs/release