More streamlined and easier to find API ML's Single Sign-On documentation

[supmi01]

Is your feature request related to a problem? Please describe.
I noticed that there is no single link / route in the documentation that would give "aspiring" Zowe conformant REST API services guidance on how to enable services for SSO via APIML.

Describe the solution you'd like
Wondering whether there is not better way, e.g.:
The documentation could be streamlined from the perspective of Conformance Criteria. Meaning if there are SSO requirements, id like to easily learn about the concept and than how to achieve that with my service.

Describe alternatives you've considered
explanation that is below

Additional context
There is a very short statement about SSO in the Zowe overview section but then you won't really find much using the SSO, or single sign-on key words. You have to know to go to Zowe Security section, to read about the Authentication concept. And then based upon what technology you are using in order to enable your service to SSO via APIML you have to go to Developing for APIML section to read about PassTickets and how to enable Zowe to generate one, or alternatively how to go for ZAAS client library to adopt Liberty JWT technology.

[plavjanik]

There is documentation that has been written focusing on Zowe extenders and SSO - zowe/docs-site#1213. It has been merged this week.

Note: The ZAAS client is not for Liberty JWT in general. The ZAAS client is for Zowe JWT which can be issued by Zowe APIML (ZAAS) or by z/OSMF (that is generated by Liberty JWT functionality) but Zowe uses specifically z/OSMF JWT and that one cannot be used with other Liberty based services.