Adjust README

README.md

@@ -10,6 +10,8 @@ How can we incorporate trusted, external math knowledge in generated answers to
 This project is [hosted on GitHub](https://github.com/DigitalHarborFoundation/llm-math-education).
 Feel free to open an [issue](https://github.com/DigitalHarborFoundation/llm-math-education/issues) with questions, comments, or requests.
 
+A [fork of this repository at `DigitalHarborFoundation/rag-for-math-qa`](https://github.com/DigitalHarborFoundation/rag-for-math-qa) contains research code and data used to publish [our workshop paper](https://arxiv.org/abs/2310.03184).
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 ## Demo
 
 You can explore the effects of the retrieval-augmented generation approach by using our [Streamlit app](https://llm-math-education-levon003.streamlit.app/About_this_app). You'll need to provide your own OpenAI API key.