Update README_CN.md

README_CN.md

@@ -36,7 +36,7 @@ Apache License, Version 2.0
 - 配置中心: Zookeeper
 - 集群策略: Failover/[Failfast](https://github.com/apache/dubbo-go/pull/140)/[Failsafe/Failback](https://github.com/apache/dubbo-go/pull/136)/[Available](https://github.com/apache/dubbo-go/pull/155)/[Broadcast](https://github.com/apache/dubbo-go/pull/158)/[Forking](https://github.com/apache/dubbo-go/pull/161)
 - 负载均衡策略: Random/[RoundRobin](https://github.com/apache/dubbo-go/pull/66)/[LeastActive](https://github.com/apache/dubbo-go/pull/65)
-- 过滤器: Echo Health Check
+- 过滤器: Echo Health Check/[服务熔断&降级](https://github.com/apache/dubbo-go/pull/133)
 - 其他功能支持: [泛化调用](https://github.com/apache/dubbo-go/pull/122)/启动时检查/服务直连/多服务协议/多注册中心/多服务版本/服务分组
 
 开发中列表: