Add Qdrant as another example of vector database

[kacperlukawski]

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I added Qdrant vector database to the notebook using the same approach as you did for Pinecone and Weaviate. Due to some rate limits and other issues, I could not create the embeddings for all the documents so it may require relaunching. However, all the required logic is already in place, with a corresponding docker-compose.yaml file to run Qdrant in a container.

[kacperlukawski]

@colin-openai I'd appreciate your review on that.