diff --git a/README.md b/README.md
index 681d47d8..cdac8058 100644
--- a/README.md
+++ b/README.md
@@ -61,7 +61,7 @@ Rust的外部库层次不齐，针对这一点，我们根据功能分类推荐
 因此我联合几个朋友一起创建了Rust编程学院(Rust College), 致力于给国内提供最新、最高质量Rust学习内容。
 
 官网网址:
-- https://college.cn
+- https://college.rs
 - https://rustcollege.cn
 
 
diff --git a/book.toml b/book.toml
index 214e0ef3..284cef7f 100644
--- a/book.toml
+++ b/book.toml
@@ -10,4 +10,5 @@ git-repository-url = "https://github.com/rustcm/the-way-to-rust"
 edit-url-template = "https://github.com/rustcm/the-way-to-rust/edit/main/{path}"
 
 [output.html.fold]
-enable = true
\ No newline at end of file
+enable = true
+level = 0
\ No newline at end of file