diff --git a/_includes/head-custom.html b/_includes/head-custom.html
index eea8e7a..e049264 100644
--- a/_includes/head-custom.html
+++ b/_includes/head-custom.html
@@ -4,6 +4,6 @@
 {% include head-custom-google-analytics.html %}
 
 <!-- You can set your favicon here -->
-<link rel="shortcut icon" href="{{ “thumbnail.png” | relative_url }}">
+<link rel="shortcut icon" href="{{ “./favicon.ico” | relative_url }}">
 
 <!-- end custom head snippets -->
diff --git a/index.md b/index.md
index 2b7b21e..ae40d74 100644
--- a/index.md
+++ b/index.md
@@ -19,9 +19,12 @@ There should be whitespace between paragraphs. We recommend including a README,
 # 定位
 
 
+
 # 感知
 
-This is a normal paragraph following a header. GitHub is a code hosting platform for version control and collaboration. It lets you and others work together on projects from anywhere.
+通用障碍物检测
+*   静态障碍物检测 
+*   动态障碍物检测
 
 # 规划