NFS: Added an example to consume the nfs export created by nfs operator.
NFS: Added an example to consume the nfs export created by nfs operator.

Signed-off-by: rohan47 <cda59ea48eea897959ddd046298f674f7b428189@redhat.com>

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