doc: sync circuitbreaker.md (#839)

Co-authored-by: Yi Duan <duanyi.aster@bytedance.com>

Author: alice-yyds

content/en/docs/kitex/Tutorials/service-governance/circuitbreaker.md

@@ -1,13 +1,11 @@
 ---
 title: "Circuit Breaker"
-date: 2023-10-23
-weight: 1
+date: 2023-10-24
+weight: 5
 keywords: ["Kitex - EN","Circuit Breaker"]
-description: ""
+description: "This doc covers Kitex Circuit Breaker use guide and principle introduction."
 ---
 
-# Circuit Breaker
-
 ## Introduction
 
 Kitex provides a default implementation of Circuit Breaker, but it’s disabled by default.

content/zh/docs/kitex/Tutorials/service-governance/circuitbreaker.md

@@ -1,13 +1,11 @@
 ---
 title: "熔断"
-date: 2023-10-23
-weight: 1
-keywords: ["Kitex","熔断"]
-description: ""
+date: 2023-10-24
+weight: 5
+keywords: ["Kitex","熔断","熔断器"]
+description: "Kitex 熔断使用指南、原理介绍。"
 ---
 
-# 熔断
-
 ## 介绍
 
 Kitex 提供了熔断器的实现，但是没有默认开启，需要用户主动使用。下面简单介绍一下如何使用以及 Kitex 熔断器的策略。