docs: updating nfs quickstart docs
docs: updating nfs quickstart docs

The nfs quickstart docs have references to nfs-provisioner which no longer exist and the storage class example uses the wrong provisioner value.

Signed-off-by: Kieran Bristow (ZA) <31a9969ff02344b8e2f77278856332aa86fd1385@absa.africa>

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