Add service field selectors

Add missing Service field selectors.

Author: odinuge

content/en/docs/concepts/overview/working-with-objects/field-selectors.md

@@ -39,6 +39,7 @@ Error from server (BadRequest): Unable to find "ingresses" that match label sele
 | Pod                       | `spec.nodeName`<br>`spec.restartPolicy`<br>`spec.schedulerName`<br>`spec.serviceAccountName`<br>`spec.hostNetwork`<br>`status.phase`<br>`status.podIP`<br>`status.podIPs`<br>`status.nominatedNodeName`                                                                            |
 | Event                     | `involvedObject.kind`<br>`involvedObject.namespace`<br>`involvedObject.name`<br>`involvedObject.uid`<br>`involvedObject.apiVersion`<br>`involvedObject.resourceVersion`<br>`involvedObject.fieldPath`<br>`reason`<br>`reportingComponent`<br>`source`<br>`type` |
 | Secret                    | `type`                                                                                                                                                                                                                                                          |
+| Service                   | `spec.clusterIP`<br>`spec.type`                                                                                                                                                                                                                                 |
 | Namespace                 | `status.phase`                                                                                                                                                                                                                                                  |
 | ReplicaSet                | `status.replicas`                                                                                                                                                                                                                                               |
 | ReplicationController     | `status.replicas`                                                                                                                                                                                                                                               |