Update README.md

Author: Evolutionary-Intelligence

README.md

@@ -701,13 +701,14 @@ JCYJ20200109141235597 (2,000,000 Yuan).
 
 If this open-source Python library is used in your paper or project,
 it is highly welcomed *but NOT mandatory* to cite the following
-arXiv [preprint](https://arxiv.org/abs/2212.05652) paper: **Duan, Q.,
-Zhou, G., Shao, C., Wang, Z., Feng, M., Huang, Y., Tan, Y., Yang, Y.,
-Zhao, Q. and Shi, Y., 2024. PyPop7: A Pure-Python Library for
-Population-Based Black-Box Optimization. arXiv preprint
-arXiv:2212.05652.** (Now it has been submitted to
-[JMLR](https://jmlr.org/), after 3-round reviews from 28 Mar 2023 to
-01 Nov 2023 to 05 Jul 2024, and finally accepted in 11 Oct 2024.)
+arXiv [preprint](https://arxiv.org/abs/2212.05652) paper (First
+Edition: 12 Dec 2022): **Duan, Q., Zhou, G., Shao, C., Wang, Z.,
+Feng, M., Huang, Y., Tan, Y., Yang, Y., Zhao, Q. and Shi, Y., 2024.
+PyPop7: A Pure-Python Library for Population-Based Black-Box
+Optimization. arXiv preprint arXiv:2212.05652.** (Now it has been
+submitted to [JMLR](https://jmlr.org/), after 3-round reviews from
+28 Mar 2023 to 01 Nov 2023 to 05 Jul 2024, and finally accepted in
+11 Oct 2024.)
 
 ### 2025