Update README.md

README.md

@@ -9,6 +9,10 @@ Xueguang Ma, Liang Wang, Nan Yang, Furu Wei, Jimmy Lin, arXiv 2023
 
 This model is fine-tuned from LLaMA-2-7B using LoRA for document reranking, this model takes input length upto 4096 tokens.
 
+## Training Data
+The model is fine-tuned on the training split of [MS MARCO Document Ranking](https://microsoft.github.io/msmarco/Datasets) datasets for 1 epoch.
+Please check our paper for details.
+
 ## Usage
 
 Below is an example to compute the similarity score of a query-document pair