Add MJCF and Xacro links for TIAGo description

Author: stephane-caron

README.md

@@ -127,7 +127,7 @@ A curated list of awesome robot descriptions in URDF, Xacro or MJCF formats.
 | Stretch 2 | Hello Robot | [MJCF](https://github.com/google-deepmind/mujoco_menagerie/tree/main/hello_robot_stretch) | Clear BSD | ✔️ | ✔️ | ✔️ |
 | Stretch 3 | Hello Robot | [MJCF](https://github.com/google-deepmind/mujoco_menagerie/tree/main/hello_robot_stretch_3) | Apache-2.0 | ✔️ | ✔️ | ✔️ |
 | Stretch RE1 | Hello Robot | [URDF](https://github.com/robot-descriptions/stretch_description), [Xacro](https://github.com/hello-robot/stretch_ros/tree/master/stretch_description) | CC-BY-NC-SA-4.0 | ✔️ | ✔️ | ✔️ |
-| TIAGo | PAL Robotics | [URDF](https://github.com/Gepetto/example-robot-data/tree/master/robots/tiago_description) | CC-BY-NC-ND-3.0 | ✔️ | ✔️ | ✔️ |
+| TIAGo | PAL Robotics | [URDF](https://github.com/Gepetto/example-robot-data/tree/master/robots/tiago_description), [MJCF](https://github.com/google-deepmind/mujoco_menagerie/tree/main/pal_tiago), [Xacro](https://github.com/pal-robotics/tiago_robot/blob/kinetic-devel/tiago_description/robots/tiago.urdf.xacro) | Apache-2.0 | ✔️ | ✔️ | ✔️ |
 
 ### Humanoids