Update README.md

README.md

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 A mini version of "PIN: A Knowledge-Intensive Dataset for Paired and Interleaved Multimodal Documents"
 
+Paper: https://arxiv.org/abs/2406.13923
+
 This dataset contains 14M samples with PIN format.
 
 <img src="assets/intro.png">
@@ -565,4 +567,15 @@ Notably, the dataset's overall images are converted from the original dataset's
 
 For data generated or produced by us, please adhere to the Apache 2.0 License. 
 
-For data sourced from third parties, compliance with the respective third-party licenses is required.
+For data sourced from third parties, compliance with the respective third-party licenses is required.
+
+## Citation
+
+```
+@misc{2406.13923,
+  Author = {Junjie Wang and Yin Zhang and Yatai Ji and Yuxiang Zhang and Chunyang Jiang and Yubo Wang and Kang Zhu and Zekun Wang and Tiezhen Wang and Wenhao Huang and Jie Fu and Bei Chen and Qunshu Lin and Minghao Liu and Ge Zhang and Wenhu Chen},
+  Title = {PIN: A Knowledge-Intensive Dataset for Paired and Interleaved Multimodal Documents},
+  Year = {2024},
+  Eprint = {arXiv:2406.13923},
+}
+```