Readme Update

[jasonjabbour]

I'm pretty sure the following command in the Readme ros2 run teleop_twist_keyboard teleop_twist_keyboard should be updated to ros2 run champ_teleop champ_teleop.py because of the package name here:

unitree-go2-ros2/champ_teleop/package.xml

Line 3 in 0def4b1

<name>champ_teleop</name>

[anujjain-dev]

@jasonjabbour
Thanks for pointing this out. You are absolutely correct, one can use a champ teleoperation package for stable robot teleoperation.
Using a champ teleop gives you a more stable gait with command velocity, while one using a standard teleop twist keyboard will also give you command velocity but with lesser stability.