rook-ceph olm: add missing nfs crd example
rook-ceph olm: add missing nfs crd example

When displaying the CRDs OLM looks into the alm-examples field in the
CSV file, the NFS CRD example was missing so let's add it.

Signed-off-by: Sébastien Han <62d754cc350e84d3b1c32ae79f976f5348e74a40@redhat.com>

rook/rook,rook/nfs,rook/rook,rook/nfs,rook/nfs,rook/rook,rook/rook,rook/rook