Confusion between elasticsearch and kibana SSL settings

[tvernum]

I wasn't sure which repo to use for this issue, but I think this is probably the best fit, even if the fix ends up elsewhere

I've run into 2 situations recently where someone tried to us ES stylexpack.* settings to configure SSL in Kibana.
One is on discuss, the other was on private communications.

I'm not sure exactly where the issue lies, whether the docs for setting up TLS is Elasticsearch need to have a link to the Kibana docs, or whether the Kibana docs are hard to find, but 2 cases in as many weeks (that I've seen) implies that we should do something to clarify the setup process.