message: correct c/p typo.
  add staging priority level.
  prefix priority levels.
diff: @@ -4,14 +4,21 @@ items:
  - apiVersion: scheduling.k8s.io/v1beta1
  kind: PriorityClass
  metadata:
  - name: priority-development
  + name: lagoon-priority-production
  value: 1000000
  globalDefault: false
  description: "This priority class should be used for production environments."
  - apiVersion: scheduling.k8s.io/v1beta1
  kind: PriorityClass
  metadata:
  - name: priority-development
  + name: lagoon-priority-staging
  + value: 100000
  + globalDefault: true
  + description: "This priority class should be used for staging environments."
  +- apiVersion: scheduling.k8s.io/v1beta1
  + kind: PriorityClass
  + metadata:
  + name: lagoon-priority-development
  value: 10000
  globalDefault: true
  description: "This priority class should be used for development environments."
  