NFS manifests for the Kubernetes tutorial are missing

**Describe the bug**
The [kubernetes tutorial]() states that:

```
Then set up the nfs server (from the gcp directory in the mistral repo):

kubectl apply -f nfs/nfs_server.yaml
kubectl apply -f nfs/nfs_service.yaml
kubectl get services
```

Unfortunately I can't find the above under the gcp folder. Any idea what's going on? Am I doing something wrong here?
