diff --git a/.gitmodules b/.gitmodules
deleted file mode 100644
index 12744dd..0000000
--- a/.gitmodules
+++ /dev/null
@@ -1,3 +0,0 @@
-[submodule "themes/hugo-book"]
-	path = themes/hugo-book
-	url = https://github.com/alex-shpak/hugo-book
diff --git a/content.zh/docs/学术资源/学科在线资源/_index.md b/content.zh/docs/学术资源/学科在线资源/_index.md
index a938df8..c3dd062 100644
--- a/content.zh/docs/学术资源/学科在线资源/_index.md
+++ b/content.zh/docs/学术资源/学科在线资源/_index.md
@@ -62,15 +62,15 @@ bookCollapseSection: true
 
 - Boven Jiang
 
-### 物理
-- Derrick Jiang
-
 ### 经济
 
 - Tobby Xu
 
 <--->
 
+### 物理
+- Derrick Jiang
+
 ### 开发
 
 - [James Zhou](https://jamesflare.com)