fixed README

Author: atinfinity

ros2/demos/kachaka_follow/README.md

@@ -1,15 +1,15 @@
 # Follow Example
 
-# Overview
+## Overview
 
 * This is an example that uses LIDAR to move towards the nearest object. It includes instructions on how to use `cmd_vel` and `LaserScan`.
 
-# Building
+## Building
 
-*Copy the necessary folders to workspace and build the project.
+* Copy the necessary folders to workspace and build the project.
 
 ```
-mkidr -p ~/ros2_ws/src
+mkdir -p ~/ros2_ws/src
 cd ~/ros2_ws/src
 cp -r ~/kachaka-api/ros2/kachaka_interfaces .
 cp -r ~/kachaka-api/ros2/demos/kachaka_follow .
@@ -18,14 +18,13 @@ cd ~/ros2_ws
 colcon build
 ```
 
-# Execution
+## Execution
 
 * Open another terminal and start the ROS2 bridge.
 
 ```
-cd ~/kachaka-api/ros2_bridge
+cd ~/kachaka-api/tools/ros2_bridge
 ./start_bridge.sh <Kachaka's IP>
-
 ```
 
 * Next, run the following command.
@@ -35,4 +34,3 @@ cd ~/ros2_ws
 source install/setup.bash
 ros2 run kachaka_follow follow
 ```
-