diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
index 13fdd6b..481c22b 100644
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -16,6 +16,7 @@ Guidelines for modifications:
 ## Contributors
 
 * Jijie Huang
+* Yufeng Chi (-T.K.-)
 
 ## Acknowledgements
 
diff --git a/README.md b/README.md
index 6d2cb5d..7e0b01e 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,7 @@ This repository provides a framework for simulation verification and physical de
 
 feature:
 - Support legged_gym based on IaacGym and IsaacLab based on IsaacSim. Use `framework` to distinguish.
+- The code has two versions: **ROS** and **ROS2**
 - The code supports both cpp and python, you can find python version in `src/rl_sar/scripts`
 
 [Click to discuss on Discord](https://discord.gg/vmVjkhVugU)
diff --git a/README_CN.md b/README_CN.md
index d45ec36..fef09b7 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -8,6 +8,7 @@
 
 特性：
 - 支持基于IaacGym的legged_gym，也支持基于IsaacSim的IsaacLab，用`framework`加以区分。
+- 代码有**ROS**和**ROS2**两个版本
 - 代码有python和cpp两个版本，python版本可以在`src/rl_sar/scripts`中找到
 
 [点击在Discord上讨论](https://discord.gg/MC9KguQHtt)