Add a note for Enterprise customers that Ansible Tarantool Enterprise should be used for running instances in production

[andreyaksenov]

Product: Tarantool
Since: 3.0
Root document:

• https://www.tarantool.io/en/doc/latest/concepts/configuration/configuration_etcd/#starting-a-cluster
• https://www.tarantool.io/en/doc/latest/book/admin/start_stop_instance/

SME: @ opomuc

[opomuc]

In addition to this, ETCD config is an enterprise only feature.

https://www.tarantool.io/en/doc/latest/concepts/configuration/configuration_etcd/#starting-a-cluster
https://www.tarantool.io/en/doc/latest/concepts/configuration/configuration_etcd/#configuring-connection-to-an-etcd-storage

both links ought to mention this