`example-get-started-experiments`: migrate off fast ai

[dberenbaum]

Other frameworks have surpassed fast ai in popularity and utility in the community. There are a couple reasons it's important:

1. Better to have our example repo use a more popular, realistic, familiar framework.
2. Easier and more helpful when we want to extend the example repo into more complex scenarios like handling multi node training.

We could also try to develop those scenarios in other repos like https://github.com/shcheklein/hackathon or https://github.com/iterative/lstm_seq2seq, but it seems worth the investment to do it in our canonical example repos so that we can use it in official examples and develop content around it.

Options for frameworks to migrate to:

• lightning
• huggingface
• yolo (@daavoo already had developed a version of this; can you share it?)

[daavoo]

• yolo (@daavoo already had developed a version of this; can you share it?)

Is in this branch https://github.com/iterative/example-repos-dev/tree/update-to-yolo