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README.md

@@ -421,7 +421,7 @@ The above tables coule be better summarized by this wonderful visualization from
 - [MIT] Introduction to Data-Centric AI [Homepage](https://dcai.csail.mit.edu)
 
 ## Books
-- [Generative AI with LangChain: Build large language model (LLM) apps with Python, ChatGPT, and other LLMs](https://amzn.to/3GUlRng)
+- [Generative AI with LangChain: Build large language model (LLM) apps with Python, ChatGPT, and other LLMs](https://amzn.to/3GUlRng) - it comes with a [GitHub repository](https://github.com/benman1/generative_ai_with_langchain) that showcases a lot of the functionality
 
 
 ## Opinions