Swift Sync Gateway Replication Documentation Session authentication link

The documentation under Session Authentication lists a POST API to use to post to for the user to click through to the API documentation.  The link doesn't click through and the {tkn-db} string is confusing to understand what it is we are trying to explain.

https://docs.couchbase.com/couchbase-lite/current/swift/replication.html#session-authentication

cc Denis Rosa , Priya Rajagopal