Update 41.1. Securing sensitive endpoints.md

Author: qibaoguang

V. Spring Boot Actuator/41.1. Securing sensitive endpoints.md

@@ -9,4 +9,4 @@ security.user.password=secret
 management.security.role=SUPERUSER
 ```
 
-**注**：如果你不使用Spring Security，那你的HTTP端点就被公开暴露，你应该慎重考虑启用哪些端点。具体参考[Section 40.1, “Customizing endpoints”](http://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#production-ready-customizing-endpoints)。
+**注**：如果你不使用Spring Security，那你的HTTP端点就被公开暴露，你应该慎重考虑启用哪些端点。具体参考[Section 40.1, “Customizing endpoints”](40.1. Customizing endpoints.md)。