couchbase-cli needs secure TLS examples

For each of the couchbase-cli options in the documentation, we should list an example that is using a secure TLS connection to the cluster. 

And also, each item's page needs the host formats section updating to specifically call out TLS https connections in the format  https://<addr>:<port> are an option,   with 18091 being mentioned along-side 8091 as the default TLS port. 

https://docs.couchbase.com/server/current/cli/cbcli/couchbase-cli-analytics-link-setup.html#host-formats