add example into cr.yaml

Author: hors

deploy/cr.yaml

@@ -2,6 +2,8 @@ apiVersion: pgv2.percona.com/v2
 kind: PerconaPGCluster
 metadata:
   name: cluster1
+#  annotations:
+#    pgv2.percona.com/custom-patroni-version: "4"
 #  finalizers:
 #  - percona.com/delete-pvc
 #  - percona.com/delete-ssl