Mention pytorch-lightning's LightningCLI

[mauvilsa]

Given what is currently in the course, it might be worth considering to mention pytorch-lightning's LightningCLI. Already pytorch-lightning is in M14 - Minimizing boilerplate. But LightningCLI could be a good complement to what is in other sections. The main goals that LightningCLI addresses are:

• Automatically save the full config (reproducibility)
• Separation of code from config (good practice)
• Make things automatically configurable (minimize boilerplate)

When the code is well written, i.e. parameters with type hints, descriptions in docstrings, defined where they are used (M7 - Good coding practice), all of these parameters automatically become configurable M10 - Config files. There is no need to learn how to use another framework like Hydra.

[SkafteNicki]

Add in 6338916, thanks for the suggestion.