diff --git a/docs/README.md b/docs/README.md
index 23afd41..d912782 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -57,13 +57,6 @@ PDF版本是全书初稿，人民邮电出版社的编辑老师们对初稿进
 
 <center class="half"><img src="https://raw.githubusercontent.com/datawhalechina/easy-rl/master/docs/res/yanggao.png" width="680"></center>
 
-## 相关视频内容
-
-* [《Datawhale强化学习教程》出版](https://www.bilibili.com/video/BV1rb4y1x7Zd/?spm_id_from=333.999.0.0&vd_source=642fa389e9e78cff4881c038963ac312)
-* [蘑菇书起源与RL入门指南](https://www.bilibili.com/video/BV1HZ4y1v7eX/?spm_id_from=333.999.0.0&vd_source=642fa389e9e78cff4881c038963ac312)
-* [蘑菇书开源组队学习活动](https://www.bilibili.com/video/BV1Ha41197Pg/?spm_id_from=333.999.0.0&vd_source=642fa389e9e78cff4881c038963ac312)
-* [蘑菇书开源学习与成长](https://www.bilibili.com/video/BV1xW4y1B72o/?spm_id_from=333.999.0.0&vd_source=642fa389e9e78cff4881c038963ac312)
-
 ## 内容导航
 
 | 章节                                                         | 习题                                                         | 相关项目                                                     | 配套代码                                                     |
@@ -97,6 +90,13 @@ PDF版本是全书初稿，人民邮电出版社的编辑老师们对初稿进
 - 对**视觉强化学习**感兴趣的读者，可阅读[Awesome Visual RL](https://github.com/qiwang067/awesome-visual-rl)
 - 对**深度学习**感兴趣的读者，可阅读[李宏毅深度学习教程LeeDL-Tutorial](https://github.com/datawhalechina/leedl-tutorial)
 
+## 相关视频内容
+
+* [《Datawhale强化学习教程》出版](https://www.bilibili.com/video/BV1rb4y1x7Zd/?spm_id_from=333.999.0.0&vd_source=642fa389e9e78cff4881c038963ac312)
+* [蘑菇书起源与RL入门指南](https://www.bilibili.com/video/BV1HZ4y1v7eX/?spm_id_from=333.999.0.0&vd_source=642fa389e9e78cff4881c038963ac312)
+* [蘑菇书开源组队学习活动](https://www.bilibili.com/video/BV1Ha41197Pg/?spm_id_from=333.999.0.0&vd_source=642fa389e9e78cff4881c038963ac312)
+* [蘑菇书开源学习与成长](https://www.bilibili.com/video/BV1xW4y1B72o/?spm_id_from=333.999.0.0&vd_source=642fa389e9e78cff4881c038963ac312)
+
 ## 贡献者
 
 <table border="0">