Fix link to the config file.

docs/training-baselines.md

 # Train an agent
 
-- If you want to change the config for the agent, check out [`neural-mmo/projekt/config.py`](https://github.com/jsuarez5341/neural-mmo/blob/master/neural_mmo/projekt/config.py).
+- If you want to change the config for the agent, check out [`neural-mmo/projekt/config.py`](https://github.com/jsuarez5341/neural-mmo/blob/master/projekt/config.py).
 - We recommend that you subclass `CompetitionRound1` for the first round.
 - The [neural-mmo documentation](https://jsuarez5341.github.io/neural-mmo/build/html/rst/userguide.html) contains a ton of additional information about the environment and previous work upon it.