diff --git a/敏捷开发/1.敏捷开发简介.md b/敏捷开发/1.敏捷开发简介.md
index a712a96..10b2047 100644
--- a/敏捷开发/1.敏捷开发简介.md
+++ b/敏捷开发/1.敏捷开发简介.md
@@ -17,9 +17,9 @@
 
 ### 参考
 
-[scrumcn中文网](https://www.scrumcn.com/agile/scrum-knowledge-library.html)
-[进阶必看！大厂设计超爱用的敏捷开发指南](https://www.uisdc.com/agile-development-guide)
-[敏捷宣言](https://agilemanifesto.org/iso/zhchs/manifesto.html)
-[敏捷开发入门教程](https://www.ruanyifeng.com/blog/2019/03/agile-development.html)
-[为何谷歌之类大厂程序员认为敏捷开发是瞎扯淡？](https://www.zhihu.com/question/340916482)
-[你如何理解敏捷开发？](https://www.zhihu.com/question/19645396)
+[scrumcn中文网](https://www.scrumcn.com/agile/scrum-knowledge-library.html) <br>
+[进阶必看！大厂设计超爱用的敏捷开发指南](https://www.uisdc.com/agile-development-guide) <br>
+[敏捷宣言](https://agilemanifesto.org/iso/zhchs/manifesto.html) <br>
+[敏捷开发入门教程](https://www.ruanyifeng.com/blog/2019/03/agile-development.html) <br>
+[为何谷歌之类大厂程序员认为敏捷开发是瞎扯淡？](https://www.zhihu.com/question/340916482) <br>
+[你如何理解敏捷开发？](https://www.zhihu.com/question/19645396) <br>