Merge pull request #341 from jasonbosco/add-typesense-readme

Add README for Typesense

examples/vector_databases/typesense/README.md

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+# Typesense
+
+Typesense is an open source, in-memory search engine, that you can either [self-host](https://typesense.org/docs/guide/install-typesense.html#option-2-local-machine-self-hosting) or run on [Typesense Cloud](https://cloud.typesense.org/).
+
+## Why Typesense?
+
+Typesense focuses on performance by storing the entire index in RAM (with a backup on disk) and also focuses on providing an out-of-the-box developer experience by simplifying available options and setting good defaults. 
+
+It also lets you combine attribute-based filtering together with vector queries, to fetch the most relevant documents.
+
+### Other features
+
+Besides vector storage and search, Typesense also offers the following features:
+
+- Typo Tolerance: Handles typographical errors elegantly, out-of-the-box.
+- Tunable Ranking: Easy to tailor your search results to perfection.
+- Sorting: Dynamically sort results based on a particular field at query time (helpful for features like "Sort by Price (asc)").
+- Faceting & Filtering: Drill down and refine results.
+- Grouping & Distinct: Group similar results together to show more variety.
+- Federated Search: Search across multiple collections (indices) in a single HTTP request.
+- Scoped API Keys: Generate API keys that only allow access to certain records, for multi-tenant applications.
+- Synonyms: Define words as equivalents of each other, so searching for a word will also return results for the synonyms defined.
+- Curation & Merchandizing: Boost particular records to a fixed position in the search results, to feature them.
+- Raft-based Clustering: Set up a distributed cluster that is highly available.
+- Seamless Version Upgrades: As new versions of Typesense come out, upgrading is as simple as swapping out the binary and restarting Typesense.
+- No Runtime Dependencies: Typesense is a single binary that you can run locally or in production with a single command.
+
+## How To
+
+- To learn more about how to use Typesense with OpenAI embeddings, see the notebook here for an example: [examples/vector_databases/Using_vector_databases_for_embeddings_search.ipynb](/examples/vector_databases/Using_vector_databases_for_embeddings_search.ipynb)
+- To learn more about Typesense's vector search feature, read the docs here: [https://typesense.org/docs/0.24.1/api/vector-search.html](https://typesense.org/docs/0.24.1/api/vector-search.html).