diff --git a/study/kernel/00-DESCRIPTION/LinuxChangeLog.md b/study/kernel/00-DESCRIPTION/LinuxChangeLog.md
index e3554b1..ce99fdd 100644
--- a/study/kernel/00-DESCRIPTION/LinuxChangeLog.md
+++ b/study/kernel/00-DESCRIPTION/LinuxChangeLog.md
@@ -1458,7 +1458,8 @@ SLAB 作为一个相对独立的子模块, 一直有自己完善的调试支持,
 
 **引用：**
 
-\[1\] [Single UNIX Specification](https://link.zhihu.com/?target=https%3A//en.wikipedia.org/wiki/Single_UNIX_Specification%23Non-registered_Unix-like_systems)
+<div id="ref-anchor-12"></div>
+- [1] [Single UNIX Specification](https://link.zhihu.com/?target=https%3A//en.wikipedia.org/wiki/Single_UNIX_Specification%23Non-registered_Unix-like_systems)
 
 \[2\] POSIX 关于调度规范的文档: [http://nicolas.navet.eu/publi/SlidesPosixKoblenz.pdf](https://link.zhihu.com/?target=http%3A//nicolas.navet.eu/publi/SlidesPosixKoblenz.pdf)