Fix the authorization-policy-file description
Actually this is in a format like below not a csv format
```json
{"apiVersion": "abac.authorization.kubernetes.io/v1beta1", "kind": "Policy", "spec": {"group":"system:authenticated", "namespace": "*", "resource": "*","apiGroup": "*"}}
{"apiVersion": "abac.authorization.kubernetes.io/v1beta1", "kind": "Policy", "spec": {"group":"system:authenticated", "namespace": "*", "resource": "ingresses","apiGroup": "extensions"}}
{"apiVersion": "abac.authorization.kubernetes.io/v1beta1", "kind": "Policy", "spec": {"group":"system:authenticated", "namespace": "*", "resource": "*","apiGroup": "apiextensions.k8s.io"}}
```