update README

Author: hobti01

charts/cluster-autoscaler/README.md

@@ -533,8 +533,8 @@ vpa:
 | tolerations | list | `[]` | List of node taints to tolerate (requires Kubernetes >= 1.6). |
 | topologySpreadConstraints | list | `[]` | You can use topology spread constraints to control how Pods are spread across your cluster among failure-domains such as regions, zones, nodes, and other user-defined topology domains. (requires Kubernetes >= 1.19). |
 | updateStrategy | object | `{}` | [Deployment update strategy](https://kubernetes.io/docs/concepts/workloads/controllers/deployment/#strategy) |
-| vpa | object | `{"containerPolicy":{},"enabled":false,"updateMode":"Auto"}` | Configure a VerticalPodAutoscaler for the cluster-autoscaler Deployment. |
+| vpa | object | `{"containerPolicy":{},"enabled":false,"recommender":"default","updateMode":"Auto"}` | Configure a VerticalPodAutoscaler for the cluster-autoscaler Deployment. |
 | vpa.containerPolicy | object | `{}` | [ContainerResourcePolicy](https://github.com/kubernetes/autoscaler/blob/vertical-pod-autoscaler/v0.13.0/vertical-pod-autoscaler/pkg/apis/autoscaling.k8s.io/v1/types.go#L159). The containerName is always et to the deployment's container name. This value is required if VPA is enabled. |
 | vpa.enabled | bool | `false` | If true, creates a VerticalPodAutoscaler. |
-| vpa.recommender | string | `"default"` | Name of the recommender that will apply to this VerticalPodAutoscaler. |
+| vpa.recommender | string | `"default"` | Name of the VPA recommender that will provide recommendations for vertical scaling. |
 | vpa.updateMode | string | `"Auto"` | [UpdateMode](https://github.com/kubernetes/autoscaler/blob/vertical-pod-autoscaler/v0.13.0/vertical-pod-autoscaler/pkg/apis/autoscaling.k8s.io/v1/types.go#L124) |