Add documentation and update manifests

manifests/operatorconfiguration.crd.yaml

@@ -34,6 +34,10 @@ spec:
         configuration:
           type: object
           properties:
+            # statefulset_propagate_annotations:
+            #   type: array
+            #   items:
+            #     type: string
             docker_image:
               type: string
             enable_crd_validation:

manifests/postgresql-operator-default-configuration.yaml

@@ -4,6 +4,9 @@ metadata:
   name: postgresql-operator-default-configuration
 configuration:
   docker_image: registry.opensource.zalan.do/acid/spilo-cdp-12:1.6-p115
+  # statefulset_propagate_annotation:
+  #   - deployment-time
+  #   - downscaler/*
   # enable_crd_validation: true
   # enable_lazy_spilo_upgrade: false
   # enable_shm_volume: true