* csi-ephemeral-inline-volumes: introduce CSI support for ephemeral inline volumes
This was alpha in Kubernetes 1.15 and became beta in 1.16. Several CSI
drivers already support it (soon...).
* csi-ephemeral-inline-volumes: bump date and address feedback (NodeUnpublishVolume)
* csi-ephemeral-inline-volumes: add examples and next steps
* csi-ephemeral-inline-volumes: rename file, minor edits
* csi-ephemeral-inline-volumes: include Docker example