[Documentation] Describe JDK module requirements for target application

[grzesuav]

Current Behavior

No information about JDK requirements for target application on https://cryostat.io/get-started/#using-jmx

Expected Behavior

Note what JDK requirements are needed for JMX to work

Steps To Reproduce

cryostatio/cryostat#595

Discussion follow up:

• for JDK 17 some modules are needed (like jdk.management.jfr and jdk.management) and it should be documented to avoid confusing errors

Environment

- OS:
- Environment:
- Version:

Anything else?

No response

[andrewazores]

Moving this to the website's repository.