updated paper url

README.md

@@ -19,6 +19,6 @@ For details about this benchmark and to cite it please refer to the following pa
 ```
 Title: DP-Bench: A Benchmark for Evaluating Data Product Creation Systems
 Authors: Faisal Chowdhury, Sola Shirai, Sarthak Dash, Nandana Mihindukulasooriya, Horst Samulowitz
+```
 
-arxiv(2025)
-```
+Paper url: [https://arxiv.org/pdf/2512.15798](https://arxiv.org/pdf/2512.15798)