Add docummentation page about using scylla enterprise

[tnozicka]

operator.docs.scylladb.com should have an example with Scylla Enterprise and mention everything works the same way explicitly.

[tomer-sandler]

Capturing what @tnozicka sent over email.

Regarding enterprise, there is nothing special except changing where the image
comes from with repository and version.

---

$ kubectl explain scyllacluster.spec.repository
KIND:     ScyllaCluster
VERSION:  [scylla.scylladb.com/v1](http://scylla.scylladb.com/v1)

FIELD:    repository <string>

DESCRIPTION:
     repository is the image repository to pull the Scylla image from.

$ kubectl explain scyllacluster.spec.version
KIND:     ScyllaCluster
VERSION:  [scylla.scylladb.com/v1](http://scylla.scylladb.com/v1)

FIELD:    version <string>

DESCRIPTION:
     version is a version tag of Scylla to use.
     

---

So if they want to use image docker.io/scylladb/scylla-enterprise:2023.1 then
they would add/replace repository: [docker.io/scylladb/scylla-enterprise](http://docker.io/scylladb/scylla-enterprise) and
version: 2023.1 in the ScyllaCluster CR which looks like
https://github.com/scylladb/scylla-operator/blob/v1.10/examples/generic/cluster.yaml

I've filled an issue to add a specific docs page around using enterprise [1].

Not sure if they are looking for GitOps style instructions or Helm but just in
case the GitOps / manifests deployment is shown in [2].

Regards,
Tomas

[1] - #1396
[2] - https://github.com/scylladb/scylla-operator/blob/v1.10/deploy/README.md

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[tnozicka]

/remove-lifecycle stale
/triage accepted

[tnozicka]

done in #2188