Add example notebook with Deep Lake vector database

[FayazRahman]

Summary

Added an example notebook that shows how to implement a QA system with LangChain's Deep Lake integration as a vector store and OpenAI embeddings.

Changes

List the major and minor changes.

• Major Changes
  • Adds a new vector database example
• Minor Changes
  • ...

Motivation

Add a new vector database to the collection, hence expanding the cookbook.

Self Review Checklist

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  • No left-branching sentences.
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[mikayelh]

hi there @logankilpatrick , bumping this up in case it's possible to merge to add Deep Lake to the list of vector databases, we need more open source ones out there:)

[mikayelh]

hi @ted-at-openai, just noticed you review a similar pr . Would really appreciate you taking a look at this, too, as it has been up there for a while now.

[github-actions]

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[simonpfish]

Hi @FayazRahman and @mikayelh. Apologies for the delay in reviewing this PR, and thank you for your contribution.

I just ran through the notebook and noticed a couple of broken links. It also looks like you're using a deprecated langchain api.

Would it also be possible for you guys to fill out our new pull request template? Let us know if you have any feedback on this template!

[FayazRahman]

@simonpfish I have updated the PR and the description, hope everything looks good now!

[simonpfish]

Looks good! Thank you for doing that. One last thing, I'd recommend dealing with this deprecation warning and using the latest version of that function:

And completely optional, but sometimes I find it helpful to hide the outputs of the installation cell to make the notebooks easier to read.

[FayazRahman]

@simonpfish Fixed!

[simonpfish]

Thanks for the contribution!