Update README

README.md

@@ -257,4 +257,12 @@ ref_image_np = np.array(ref_image_pil)
 print(f"\nReference image shape as NumPy array: {ref_image_np.shape}")
 ```
 
-
+## Citation
+```
+@article{song2025insert,
+  title={Insert Anything: Image Insertion via In-Context Editing in DiT},
+  author={Song, Wensong and Jiang, Hong and Yang, Zongxing and Quan, Ruijie and Yang, Yi},
+  journal={arXiv preprint arXiv:2504.15009},
+  year={2025}
+}
+```