[zh] fix broken link

Author: Arhell

content/zh/docs/reference/glossary/cluster-operator.md

@@ -36,10 +36,10 @@ tags:
 Their primary responsibility is keeping a cluster up and running, which may involve periodic maintenance activities or upgrades.<br>
 
 			
-**NOTE:** Cluster operators are different from the [Operator pattern](https://coreos.com/operators) that extends the Kubernetes API.
+**NOTE:** Cluster operators are different from the [Operator pattern](https://www.openshift.com/learn/topics/operators) that extends the Kubernetes API.
 -->
 
 他们的主要责任是保持集群正常运行，可能需要进行周期性的维护和升级活动。<br>
 
-**注意：** 集群操作者不同于[操作者模式（Operator Pattern）](https://coreos.com/operators)，操作者模式是用来扩展 Kubernetes API 的。
+**注意：** 集群操作者不同于[操作者模式（Operator Pattern）](https://www.openshift.com/learn/topics/operators)，操作者模式是用来扩展 Kubernetes API 的。