diff --git a/mkdocs.yml b/mkdocs.yml
index 2c5e6b1..0942859 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -8,6 +8,8 @@ repo_name: '/doc'
 repo_url:
 
 nav:
+  - 简介:
+      - 介绍: index.md
   - arduino:
       - 软件安装与配置: 软件安装与库文件设置.md
       - arduino内置函数: