[zh-cn] Updated replicaset.md

Signed-off-by: Gao Qian <[email protected]>

content/zh-cn/docs/concepts/workloads/controllers/replicaset.md

@@ -1,5 +1,12 @@
 ---
 title: ReplicaSet
+feature:
+  title: 自我修复
+  anchor: ReplicationController 如何工作
+  description: >
+    重新启动失败的容器，在节点死亡时替换并重新调度容器，
+    杀死不响应用户定义的健康检查的容器，
+    并且在它们准备好服务之前不会将它们公布给客户端。
 content_type: concept
 weight: 20
 ---
@@ -9,6 +16,13 @@ reviewers:
 - bprashanth
 - madhusudancs
 title: ReplicaSet
+feature:
+  title: Self-healing
+  anchor: How a ReplicaSet works
+  description: >
+    Restarts containers that fail, replaces and reschedules containers when nodes die,
+    kills containers that don't respond to your user-defined health check,
+    and doesn't advertise them to clients until they are ready to serve.
 content_type: concept
 weight: 20
 -->