* Replace old zkOk.sh livenessProbe by zookeeper-ready
Fixes one part of the issue #7287
* Update probe script content with the zookeeper-ready
Fixes the part with shows/explains the probe script at issue #7287
* Fix the path to delete liveness probe
Issue #7287
* Replace zkOk.sh readinessProbe by zookeeper-ready
Fixes "Testing for Readiness" section in issue #7287