Correct default values for SA token autoumounting in the Helm chart's README

Author: gilles-gosuin

charts/external-dns/README.md

@@ -32,7 +32,7 @@ The following table lists the configurable parameters of the _ExternalDNS_ chart
 | `serviceAccount.annotations`                  | Annotations to add to the service account.                                                                                                                                                                                                                                                                            | `{}`                                        |
 | `serviceAccount.labels`                       | Labels to add to the service account.                                                                                                                                                                                                                                                                                 | `{}`                                        |
 | `serviceAccount.name`                         | Service account to be used. If not set and `serviceAccount.create` is `true`, a name is generated using the full name template.                                                                                                                                                                                       | `""`                                        |
-| `serviceAccount.automountServiceAccountToken` | Opt out of the [service account token automounting feature](https://kubernetes.io/docs/tasks/configure-pod-container/configure-service-account/#opt-out-of-api-credential-automounting) for the service account                                                                                                       | _see values.yaml_                           |
+| `serviceAccount.automountServiceAccountToken` | Opt out of the [service account token automounting feature](https://kubernetes.io/docs/tasks/configure-pod-container/configure-service-account/#opt-out-of-api-credential-automounting) for the service account                                                                                                       | `null`                                      |
 | `rbac.create`                                 | If `true`, create the RBAC resources.                                                                                                                                                                                                                                                                                 | `true`                                      |
 | `rbac.additionalPermissions`                  | Additional permissions to be added to the cluster role.                                                                                                                                                                                                                                                               | `{}`                                        |
 | `initContainers`                              | Add init containers to the pod.                                                                                                                                                                                                                                                                                       | `[]`                                        |
@@ -85,7 +85,7 @@ The following table lists the configurable parameters of the _ExternalDNS_ chart
 | `secretConfiguration.mountPath`               | Mount path of secret configuration secret (this can be templated).                                                                                                                                                                                                                                                    | `""`                                        |
 | `secretConfiguration.data`                    | Secret configuration secret data. Could be used to store DNS provider credentials.                                                                                                                                                                                                                                    | `{}`                                        |
 | `secretConfiguration.subPath`                 | Sub-path of secret configuration secret (this can be templated).                                                                                                                                                                                                                                                      | `""`                                        |
-| `automountServiceAccountToken`                | Opt out of the [service account token automounting feature](https://kubernetes.io/docs/tasks/configure-pod-container/configure-service-account/#opt-out-of-api-credential-automounting) for the pod                                                                                                                   | _see values.yaml_                           |
+| `automountServiceAccountToken`                | Opt out of the [service account token automounting feature](https://kubernetes.io/docs/tasks/configure-pod-container/configure-service-account/#opt-out-of-api-credential-automounting) for the pod                                                                                                                   | `null`                                      |
 
 ## Namespaced scoped installation