replace `##` with `** **`, `** **` as a notice that here is something required attention. Do not use `##` because it is similar with `##` in the content, which would mislead contributors to mix up it with `## What is the purpose of the change` and others.
[ Full content available at: https://github.com/apache/flink/pull/6722 ] This message was relayed via gitbox.apache.org for [email protected]
