[docs] Update cluster setup docs to reflect the new syntax of jobmanager.sh script.
jobmanager.sh script syntax changed in Flink 1.5 as documented here: https://ci.apache.org/projects/flink/flink-docs-stable/release-notes/flink-1.5.html#changed-syntax-of-jobmanagersh-script [ Full content available at: https://github.com/apache/flink/pull/6793 ] This message was relayed via gitbox.apache.org for devnull@infra.apache.org