Machine Learning Tutorial

[nbiederbeck]

Since we now have the machine learning tools, we need to show users how to work with them.

They should be (at least) documented with the command line tools, but I would much more prefer a tutorial in the documentation.

I open this as a new issue, instead of appending at #1755, because this should focus only on documentation and tutorials not new features.

PS: we might also overhaul the whole tutorial section, there may be some outdated stuff and I really like how Gammapy handles their tutorials

[kosack]

Yes new tutorials have long been on the todo list. I think we can also separate them into two categories: high-level tutorials (like using the machine learning tools) and API-level tutorials similar to what is there already. For the high level ones, the primary one would be to show a complete step-by-step analysis, at least up to generating DL2 event lists with geometry, energy, and gammaness.

[kosack]

This also might be a nice time to look into switching the tutorial notebooks to use Jupytext #2099

[StFroese]

I think there should also be a data flow diagram showing which tools are applied at which step and which files are or can be generated along the way