Clarifying instructions for gaining access to flink-docker via INFRA

Author: dannycranmer

README.md

@@ -88,7 +88,9 @@ Once the pull request has been merged, we can release the new docker images:
 
 For **publishing to DockerHub: apache/flink** , you need to perform the following steps:
 
-1. Make sure that you are authenticated with your Docker ID, and that your Docker ID has access to `apache/flink`. If not, request access by INFRA (see [also](https://issues.apache.org/jira/browse/INFRA-21276): `docker login -u <username>`.
+1. Make sure that you are authenticated with your Docker ID, and that your Docker ID has access to `apache/flink`: `docker login -u <username>`
+   1. If you do not have access, you should seek help via the mailing list. 
+      We have a limited number of seats which are full, see [INFRA-23623](https://issues.apache.org/jira/browse/INFRA-23623) for more information. See also [INFRA-21276](https://issues.apache.org/jira/browse/INFRA-21276).
 2. Generate and upload the new images: `./publish-to-dockerhub.sh`. (Do not execute on the arm platform machine, such as Apple Silicon)
 
 For **publishing as an official image**, a new manifest should be generated and a pull request opened