diff --git a/Dockerfile b/Dockerfile
index 008f54c..e389c86 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -36,7 +36,7 @@ RUN pip install "pymycobot $PYMYCOBOT_VERSION" --user
 
 # Build the project
 WORKDIR /catkin_ws/src
-ADD . myCobotROS
+ADD . mycobot_ros
 WORKDIR /catkin_ws
 RUN catkin_make
 
diff --git a/README.md b/README.md
index eebcdc0..c6e585d 100644
--- a/README.md
+++ b/README.md
@@ -109,13 +109,13 @@ python scripts/test.py
   - launch ros and rviz
 
   ```
-  roslaunch mycobot_ros control_slider.launch
+  roslaunch mycobot_ros mycobot_slider.launch
   ```
 
   - run python script
 
   ```
-  rosrun mycobot_ros control_slider.py
+  rosrun mycobot_ros slider_control.py
   ```
 
 - **The model moves with the real manipulator**
@@ -123,13 +123,13 @@ python scripts/test.py
   - launch ros and rviz
 
   ```
-  roslanuch mycobot_ros mycobot.launch
+  roslanuch mycobot_ros mycobot_follow.launch
   ```
 
   - run python script
 
   ```
-  rosrun mycobot_ros display.py
+  rosrun mycobot_ros follow_display.py
   ```
 
 - **Open the keyboard controller**
diff --git a/READMEcn.md b/READMEcn.md
deleted file mode 100644
index 62d5f65..0000000
--- a/READMEcn.md
+++ /dev/null
@@ -1,107 +0,0 @@
-# mycobot_ros
-
-[![jaywcjlove/sb](https://jaywcjlove.github.io/sb/lang/english.svg)](README.md)
-
-[English](README.md) | [中文](READMEcn.md)
-
-![Demo](./Screenshot-1.png)
-
-**注意**:
-
-<!-- This is the mycobot ROS package designed by Zhang Lijun([lijun.zhang@elephantrobotics.com]()) -->
-
-> 请确保顶部的 Atom 烧入 `Atom`，底部的 Basic 烧入 `Transponder`。烧录工具的下载地址: [https://github.com/elephantrobotics/myCobot/tree/main/Software](https://github.com/elephantrobotics/myCobot/tree/main/Software)<br>
-> 该包的测试环境：<br> &nbsp;&nbsp;&nbsp;&nbsp; ubuntu: 16.04LTS<br> &nbsp;&nbsp;&nbsp;&nbsp; ros version: 1.12.17
-
-**如果你的`Atom` 是 2.3 或更早的, 或者 `pymycobot` 是 1.\*, 请查看分支 [before](https://github.com/elephantrobotics/myCobotRos/tree/before)**
-
-ROS 下载地址：[http://wiki.ros.org/ROS/Installation](http://wiki.ros.org/ROS/Installation)
-
-## 1. 安装
-
-### 1.1 前提
-
-要使用该包，请确保 [python api](https://github.com/elephantrobotics/pymycobot.git) 已正确安装。
-
-```bash
-pip install pymycobot --user
-```
-
-### 1.2 Ros 包的下载和安装
-
-将该 ros 包安装到 Catkin 的 src 文件夹中。
-
-```bash
-$ cd ~/catkin_ws/src
-$ git clone https://github.com/elephantrobotics/mycobot_ros.git
-$ cd ~/catkin_ws
-$ catkin_make
-```
-
-### 1.3 你可以选择测试 Python API
-
-```bash
-cd ~/catkin_ws/src/mycobot_ros
-python scripts/test.py
-```
-
-## 2. 模块
-
-### 2.1 节点
-
-- `display` 展示节点。 同步展示 myCobot 的姿态到仿真的模型。
-- `control_slider` 通过滑动条控制 myCobot。
-- `control_marker` 通过可交互的标记控制 myCobot。
-
-### 2.2 主题
-
-- `joint_states` - 控制和记录 myCobot 的状态.
-
-  ```
-  Message_type: std_msgs/JointState
-  Data: position[float, float, float, float, float, float]
-  ```
-
-## 3. RViz 可视化
-
-### 3.1 功能
-
-- 可视化 -- `display.launch`: This function will display robot arm movement in realtime when you manually move mycobot.
-
-- 控制 -- `control.launch`: This function will allow you use slider bar to control movement of the robot arm.
-
-### 3.2 启动和运行
-
-- 使用滑块控制
-
-  - 启动 ros 和 rviz
-
-  ```
-  roslaunch mycobot_ros control_slider.launch
-  ```
-
-  - 运行 python 脚本
-
-  ```
-  rosrun mycobot_ros control_slider.py
-  ```
-
-- 仿真模型同步机械臂
-
-  - 启动 ros 和 rviz
-
-  ```
-  roslanuch mycobot_ros mycobot.launch
-  ```
-
-  - 运行 python 脚本
-
-  ```
-  rosrun mycobot_ros display.py
-  ```
-
-## Q & A
-
-**Q: error[101]**
-
-**A**: 请确保的你的串口没有被占用，以及 Basic 和 Atom 烧入了正确的固件。