Remote link with alternate address fails w/ internal error if kv[SSL] and mgmt[SSL] ports are not mapped

Consider to include in documentation for remote links:

When using alternate addresses for remote links, at least one node in the remote cluster must have mgmt[SSL] port exposed, and ALL kv nodes have kv[SSL] port exposed. Failure to do so will result in a 400 (Bad Request) when creating / altering link.