diff --git a/index.md b/index.md
index 806ced2..2b7b21e 100644
--- a/index.md
+++ b/index.md
@@ -6,9 +6,12 @@ description: 非科班转行的自我救赎之路
 
 Text can be **bold**, _italic_, or ~~strikethrough~~.
 
-// [Link to another page](./another-page.html).
+[Link to another page](./another-page.html).
+
 [Markdown教程](https://markdown.com.cn/intro.html)
 
+[自动驾驶综述](https://zhuanlan.zhihu.com/p/138220034)
+
 There should be whitespace between paragraphs.
 
 There should be whitespace between paragraphs. We recommend including a README, or a file with information about your project.