diff --git a/Docs/2.PIbot-ROS安装.md b/Docs/2.PIbot-ROS安装.md
index 82de4f4..9be3a35 100644
--- a/Docs/2.PIbot-ROS安装.md
+++ b/Docs/2.PIbot-ROS安装.md
@@ -153,7 +153,7 @@ roslaunch pibot_navigation nav.launch
根据导航需求更改导航地图,地图路径在下图左下角位置`pgm`为地图格式 `yaml`为配置文件:
-
+
#### 3.3 小车控制和可视化