This PR adds links to some more free resources for people to get
acquainted with Langhchain without having to configure their system.
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Co-authored-by: Filip Schouwenaars <filipsch@users.noreply.github.com>
This PR replaces broken links to end to end usecases
([/docs/use_cases](https://python.langchain.com/docs/use_cases)) with a
non-broken version
([/docs/use_cases/qa_structured/sql](https://python.langchain.com/docs/use_cases/qa_structured/sql)),
consistently with the "Use cases" navigation button at the top of the
page.
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Co-authored-by: Matvey Arye <mat@timescale.com>
Co-authored-by: Erick Friis <erick@langchain.dev>
