The tutorial sections is too long and unstructured

[yoavkatz]

[yoavkatz]

We should split into groups:

basic topics (task, template,s formats, operator, metrics, load_save from catalog)
debugging: tags and descriptions, debugging unitxt
advance topics: (benchmarks, handling sensitive data )

unitxt, operator list seems like reference and not tutorials

use cases: RAG, Multi-modality
integrations: LM-eval, HELM

I think Glossary, and Contributors guide should move to the top level menu.