[dubbo-website] branch master updated: Update graceful-shutdown.md (#566)

[lixiaojie]

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The following commit(s) were added to refs/heads/master by this push:
     new f2181bb  Update graceful-shutdown.md (#566)
f2181bb is described below

commit f2181bb96fe95d72e1a412dff0ac6bd908afdf23
Author: liber-xk <61538821+liber...@users.noreply.github.com>
AuthorDate: Sat Mar 7 16:17:21 2020 +0800

    Update graceful-shutdown.md (#566)
---
 docs/zh-cn/user/demos/graceful-shutdown.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/zh-cn/user/demos/graceful-shutdown.md 
b/docs/zh-cn/user/demos/graceful-shutdown.md
index 8c6da4f..43dcd9b 100644
--- a/docs/zh-cn/user/demos/graceful-shutdown.md
+++ b/docs/zh-cn/user/demos/graceful-shutdown.md
@@ -23,8 +23,8 @@ Dubbo 是通过 JDK 的 ShutdownHook 来完成优雅停机的，所以如果用
 dubbo.service.shutdown.wait=15000
 ```
 
-如果 ShutdownHook 
不能生效，可以自行调用，**使用tomcat等容器部署的場景，建议通过扩展ContextListener等自行调用以下代码实现优雅停机**：
+如果 ShutdownHook 
不能生效，可以自行调用，**使用tomcat等容器部署的场景，建议通过扩展ContextListener等自行调用以下代码实现优雅停机**：
 
 ```java
 DubboShutdownHook.destroyAll();
-```
\ No newline at end of file
+```