Fixes jetbot asset path in technical_env_design.rst (#3328)

Fixes Jetbot asset path in the documentation.

- Documentation update

- [ ] I have read and understood the [contribution
guidelines](https://isaac-sim.github.io/IsaacLab/main/source/refs/contributing.html)
- [x] I have run the [`pre-commit` checks](https://pre-commit.com/) with
`./isaaclab.sh --format`
- [x] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [ ] I have updated the changelog and the corresponding version in the
extension's `config/extension.toml` file
- [ ] I have added my name to the `CONTRIBUTORS.md` or my name already
exists there
Signed-off-by: Javier Felix-Rendon <javierfelixrendon@gmail.com>

docs/source/setup/walkthrough/technical_env_design.rst

@@ -35,7 +35,7 @@ The contents of ``jetbot.py`` is fairly minimal
   from isaaclab.utils.assets import ISAAC_NUCLEUS_DIR
 
   JETBOT_CONFIG = ArticulationCfg(
-      spawn=sim_utils.UsdFileCfg(usd_path=f"{ISAAC_NUCLEUS_DIR}/Robots/Jetbot/jetbot.usd"),
+      spawn=sim_utils.UsdFileCfg(usd_path=f"{ISAAC_NUCLEUS_DIR}/Robots/NVIDIA/Jetbot/jetbot.usd"),
       actuators={"wheel_acts": ImplicitActuatorCfg(joint_names_expr=[".*"], damping=None, stiffness=None)},
   )