diff --git a/README.md b/README.md
index f5294ba..456552d 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,8 @@ Welcome to Open-Source OS Training Comp 2022（2022年开源操作系统训练
 ## Scheduling
 - NOTICE current [**SCHEDULING**](./scheduling.md)（2022年开源操作系统训练营的计划安排）!
 - [News](./news.md)（2022年开源操作系统训练营的新闻和纪要）
+- [QA](./QA.md)（常见问题解答）
+- [Online Ranking](https://os2edu.cn/grading/)（训练营在线排行榜）
 ## History
 - [open-source  os training comp 2021](https://github.com/rcore-os/rCore/wiki/os-tutorial-summer-of-code-2021)
 - [open-source  os training  comp 2020](https://github.com/rcore-os/rCore/wiki/os-tutorial-summer-of-code-2020)