Update README.md

README.md

@@ -31,7 +31,7 @@ AstroLLaMA-2-70B-Base_AIC is a specialized base language model for astronomy, de
   - Cosine decay schedule for learning rate reduction
   - Training duration: 1 epoch (approximately 2,000 A100 GPU hours)
 - **Primary Use**: Next token prediction for astronomy-related text generation and analysis
-- **Reference**: Pan et al. 2024 [Link to be added]
+- **Reference**: [Pan et al. 2024](https://arxiv.org/abs/2409.19750)
 
 ## Generating text from a prompt