Update README.md for the note of dataset preparation

README.md

@@ -20,6 +20,11 @@ A XLM-RoBERTa-base model trained on [mMARCO](https://github.com/unicamp-dl/mMARC
 Base checkpoint comes from [k-ush/xlm-roberta-base-ance-warmup](https://huggingface.co/k-ush/xlm-roberta-base-ance-warmup), so this model was trained both English and Japanese data.
 I upload checkpoint at 50k steps since MRR@100 at 60k checkpoint was decrease (mrr@100(rerank, full): 0.242, 0.182).
 
+# Dataset
+I formmated Japanese mMarco dataset for ANCE.
+Dataset preparetion script is available on github.
+https://github.com/argonism/JANCE/blob/master/data/gen_jp_data.py
+
 # Evaluation Result
 Evaluation Result during trainning with mMarco Japanese dev set.
 ``` text