Because of the latest moving of some code to a new repository, the documentation for release and verification
needs to be reorganized. There are 5 relevant documents as follows.
1. release-prepare.md
General instructions for the release and related preparation work.
2. release-doris-core.md
The Doris Core release process
3. release-doris-connectors
The Doris Connectors release process
4. release-complete.md
Release completion after release polling passed.
5. release-verify.md
Release verification methods.
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