[stable/kube-state-metrics] Document kubeTargetVersionOverride (#22792)

Signed-off-by: Denys Havrysh <denys.gavrysh@gmail.com>

stable/kube-state-metrics/Chart.yaml

@@ -6,7 +6,7 @@ keywords:
 - monitoring
 - prometheus
 - kubernetes
-version: 2.8.10
+version: 2.8.11
 appVersion: 1.9.7
 home: https://github.com/kubernetes/kube-state-metrics/
 sources:

stable/kube-state-metrics/README.md

@@ -76,3 +76,4 @@ $ helm install stable/kube-state-metrics
 | `prometheus.monitor.namespace`               | Namespace where servicemonitor resource should be created                             | `the same namespace as kube-state-metrics` |
 | `prometheus.monitor.honorLabels`             | Honor metric labels                                                                   | `false`                                    |
 | `namespaceOverride`                          | Override the deployment namespace                                                     | `""` (`Release.Namespace`)                 |
+| `kubeTargetVersionOverride`                  | Override the k8s version of the target cluster                                        | `""`                                       |

stable/kube-state-metrics/values.yaml

@@ -132,3 +132,8 @@ collectors:
 ## Override the deployment namespace
 ##
 namespaceOverride: ""
+
+## Provide a k8s version to define apiGroups for podSecurityPolicy Cluster Role.
+## For example: kubeTargetVersionOverride: 1.14.9
+##
+kubeTargetVersionOverride: ""