[doc] (master) update readme

ReadMe.md

@@ -4,12 +4,14 @@
   - __[foxy](https://github.com/xArm-Developer/xarm_ros2/tree/foxy)__: https://github.com/xArm-Developer/xarm_ros2/tree/foxy
   - __[galactic](https://github.com/xArm-Developer/xarm_ros2/tree/galactic)__: https://github.com/xArm-Developer/xarm_ros2/tree/galactic
   - __[humble](https://github.com/xArm-Developer/xarm_ros2/tree/humble)__: https://github.com/xArm-Developer/xarm_ros2/tree/humble
+  - __[jazzy](https://github.com/xArm-Developer/xarm_ros2/tree/jazzy)__: https://github.com/xArm-Developer/xarm_ros2/tree/jazzy
   - __[rolling](https://github.com/xArm-Developer/xarm_ros2/tree/rolling)__: https://github.com/xArm-Developer/xarm_ros2/tree/rolling
 
 --------------------------------------
 #####     注意: 由于此master分支代码是基于`foxy`开发的，为避免用户获取到和ros环境不匹配的代码，于2022-11-22后此分支暂不再更新，仅仅用于引导，其余分支正常更新，请切换到对应分支使用，感谢您的支持，不便之处，敬请谅解
   - __[foxy](https://github.com/xArm-Developer/xarm_ros2/tree/foxy)__: https://github.com/xArm-Developer/xarm_ros2/tree/foxy
   - __[galactic](https://github.com/xArm-Developer/xarm_ros2/tree/galactic)__: https://github.com/xArm-Developer/xarm_ros2/tree/galactic
   - __[humble](https://github.com/xArm-Developer/xarm_ros2/tree/humble)__: https://github.com/xArm-Developer/xarm_ros2/tree/humble
+  - __[jazzy](https://github.com/xArm-Developer/xarm_ros2/tree/jazzy)__: https://github.com/xArm-Developer/xarm_ros2/tree/jazzy
   - __[rolling](https://github.com/xArm-Developer/xarm_ros2/tree/rolling)__: https://github.com/xArm-Developer/xarm_ros2/tree/rolling