Docs: Feedback for Cluster Utilities

[sumnerib]

Hi, I have some feedback about this page

This states:

Also note that the value of ${PASSWORD} in the following calls is checked only if the security is enabled in Hazelcast IMDG, i.e., if you have Hazelcast IMDG Enterprise Edition.

But it doesn't tell the whole story. If you have an identity defined for your member-authentication under security, then you need to omit the ${CLUSTERNAME} and instead use the identity.username of the security realm used in the member-authentication (${PASSWORD} should be the corresponding identity.password).

There may be other caveats not listed here. The doc should be clear about what parameters are required and when.