unit 0: Onboarding (Unit 0)
unit 1: Introduction to Deep RL (Unit 1)
unit 2: Huggy (Bonus Unit 1)
unit 3: Q-Learning (Unit 2)
unit 4: DQN (Unit 3)
: Optuna (Bonus Unit 2)
unit 5: MLAgents (Unit 5)
unit 6: Policy Gradient (Unit 4)
unit 7: AI vs AI (Unit 6)
unit 8: A2C (Unit 7)
unit 9: PPO (Unit 8)