langchain

8db2338e - docs: Fix typo in Build a Retrieval Augmented Generation Part 1 section (#28921)

docs: Fix typo in Build a Retrieval Augmented Generation Part 1 section (#28921) This PR fixes a typo in [Build a Retrieval Augmented Generation (RAG) App: Part 1](https://python.langchain.com/docs/tutorials/rag/)