diff --git a/2.高效学习/2.5优雅的记笔记.md b/2.高效学习/2.5优雅的记笔记.md
index b285a26..1b6f0e2 100644
--- a/2.高效学习/2.5优雅的记笔记.md
+++ b/2.高效学习/2.5优雅的记笔记.md
@@ -13,3 +13,5 @@ Typora
 看看下面教程
 
 https://www.markdown.xyz/
+以及这个
+https://castel.dev/post/lecture-notes-1/