Update README.md to point to VTR 9 paper

Author: MohamedElgammal

README.md

@@ -36,15 +36,15 @@ See the [full license](LICENSE.md) for details.
 ## How to Cite
 The following paper may be used as a general citation for VTR:
 
-K. E. Murray, O. Petelin, S. Zhong, J. M. Wang, M. ElDafrawy, J.-P. Legault, E. Sha, A. G. Graham, J. Wu, M. J. P. Walker, H. Zeng, P. Patros, J. Luu, K. B. Kent and V. Betz "VTR 8: High Performance CAD and Customizable FPGA Architecture Modelling", ACM TRETS, 2020.
+M. A. Elgammal, A. Mohaghegh, S. G. Shahrouz, F. Mahmoudi, F. Kosar, K. Talaei, J. Fife, D. Khadivi, K. Murray, A. Boutros, K. B. Kent, J. Geoders, and V. Betz "VTR 9: Open-Source CAD for Fabric and Beyond FPGA Architecture Exploration", ACM TRETS, 2025.
 
 Bibtex:
 ```
-@article{vtr8,
-  title={VTR 8: High Performance CAD and Customizable FPGA Architecture Modelling},
-  author={Murray, Kevin E. and Petelin, Oleg and Zhong, Sheng and Wang, Jai Min and ElDafrawy, Mohamed and Legault, Jean-Philippe and Sha, Eugene and Graham, Aaron G. and Wu, Jean and Walker, Matthew J. P. and Zeng, Hanqing and Patros, Panagiotis and Luu, Jason and Kent, Kenneth B. and Betz, Vaughn},
+@article{vtr9,
+  title={VTR 9: Open-Source CAD for Fabric and Beyond FPGA Architecture Exploration},
+  author={Elgammal, Mohamed A. and Mohaghegh, Amin and Shahrouz, Soheil G. and Mahmoudi, Fatemehsadat and Kosar, Fahrican and Talaei, Kimia and Fife, Joshua and Khadivi, Daniel and Murray, Kevin and Boutros, Andrew and Kent, Kenneth B. and Goeders, Jeff and Betz, Vaughn},
   journal={ACM Trans. Reconfigurable Technol. Syst.},
-  year={2020}
+  year={2025}
 }
 ```