Add missing backtick to metrics.serviceMonitor.namespace line to correct formatting (#3790)

Author: scodef

charts/actions-runner-controller/README.md

@@ -44,7 +44,7 @@ All additional docs are kept in the `docs/` folder, this README is solely for do
 | `image.pullPolicy`                                        | The pull policy of the controller image                                                                                                   | IfNotPresent                                                                                    |
 | `metrics.serviceMonitor.enable`                           | Deploy serviceMonitor kind for for use with prometheus-operator CRDs                                                                      | false                                                                                           |
 | `metrics.serviceMonitor.interval`                         | Configure the interval that Prometheus should scrap the controller's metrics                                                              | 1m                                                                                              |
-| `metrics.serviceMonitor.namespace                         | Namespace which Prometheus is running in                                                                                                  | `Release.Namespace` (the default namespace of the helm chart).                                  |
+| `metrics.serviceMonitor.namespace`                        | Namespace which Prometheus is running in                                                                                                  | `Release.Namespace` (the default namespace of the helm chart).                                  |
 | `metrics.serviceMonitor.timeout`                          | Configure the timeout the timeout of Prometheus scrapping.                                                                                | 30s                                                                                             |
 | `metrics.serviceAnnotations`                              | Set annotations for the provisioned metrics service resource                                                                              |                                                                                                 |
 | `metrics.port`                                            | Set port of metrics service                                                                                                               | 8443                                                                                            |