Update Pupper v3 license

Author: stephane-caron

README.md

@@ -176,7 +176,7 @@ A curated list of awesome robot descriptions in URDF, Xacro or MJCF formats.
 | Laikago | UNITREE Robotics | [MJCF](https://github.com/unitreerobotics/unitree_mujoco/tree/main/data/laikago/xml), [URDF](https://github.com/unitreerobotics/unitree_ros/tree/master/robots/laikago_description) | MPL-2.0 | ✔️ | ✔️ | ✔️ |
 | Mini Cheetah | MIT | [URDF](https://github.com/Derek-TH-Wang/mini_cheetah_urdf) | BSD | ✔️ | ✔️ | ✔️ |
 | Minitaur | Ghost Robotics | [URDF](https://github.com/bulletphysics/bullet3/blob/master/data/quadruped/minitaur.urdf) | BSD-2-Clause | ✔️ | ✔️ | ✔️ |
-| Pupper v3 | Gabrael Levine | [URDF](https://github.com/G-Levine/pupper_v3_description) | ✖️  | ✔️ | ✔️ | ✔️ |
+| Pupper v3 | Gabrael Levine | [URDF](https://github.com/G-Levine/pupper_v3_description) | MIT | ✔️ | ✔️ | ✔️ |
 | Solo | ODRI | [URDF](https://github.com/Gepetto/example-robot-data/tree/master/robots/solo_description) | BSD-3-Clause | ✔️ | ✔️ | ✔️ |
 | Spot | Boston Dynamics | [MJCF](https://github.com/google-deepmind/mujoco_menagerie/tree/main/boston_dynamics_spot) | BSD-3-Clause | ✔️ | ✔️ | ✔️ |
 | Spot | Boston Dynamics | [Xacro](https://github.com/clearpathrobotics/spot_ros/tree/master/spot_description) | ✖️ | ✔️ | ✖️ | ✔️ |