We're adding a guide that describes the steps to deploy Ceph and the
Ceph CSI plugin using Juju.

It mostly follows the steps outlined in the ceph-csi readme:
https://github.com/charmed-kubernetes/ceph-csi-operator/blob/main/README.md

edited the language to be more in line with a how-to guide rather than tutorial. Also changes to layout and heading

VM containers will default to 1 vcpu, which isn't enough for K8s.
K8s services and pods will hang unless we allocate enough resources.

We'll readd the "juju k8s deploy" example and an explicit note
on resource requirements.