Update introduction.mdx

units/en/unitbonus5/introduction.mdx

@@ -19,5 +19,5 @@ At the end of the unit, **you will have a trained agent capable of solving the l
 - Some familiarity with Godot is recommended, although completing the tutorial does not require any gdscript coding knowledge,
 - Godot with .NET support (tested to work with [4.3.dev5 .NET](https://godotengine.org/article/dev-snapshot-godot-4-3-dev-5/), may work with newer versions too),
 - Godot RL Agents (you can use `pip install godot-rl` in the venv/conda env),
-- [Imitation library](train-our-robot.mdx),
-- Time: ~1-2 hours to complete the project and training. It can be outside of this range depending on the hardware used.
+- [Imitation library](https://huggingface.co/learn/deep-rl-course/unitbonus5/train-our-robot),
+- Time: ~1-2 hours to complete the project and training. It can be outside of this range depending on the hardware used.