[fix]:修复分支错误

docs/chapt10/10.4Cartographer介绍与安装.md

@@ -38,7 +38,7 @@ sudo apt install ros-foxy-cartographer-ros
 
 ```
 git clone https://ghproxy.com/https://github.com/ros2/cartographer.git -b foxy
-git clone https://ghproxy.com/https://github.com/ros2/cartographer_ros.git -b dasing
+git clone https://ghproxy.com/https://github.com/ros2/cartographer_ros.git -b dashing
 ```
 
 安装依赖