Update citation with arxiv id.

about.py

@@ -2,6 +2,8 @@ CITATION_BUTTON_LABEL = "Copy the following snippet to cite these results"
 CITATION_BUTTON_TEXT = r"""@misc{turtle_2025,
     author = {Garcia-Gasulla, D. and Kestor, G. and Parisi, E. and Albertí-Binimelis, M. and Gutierrez, C. and Ghorab, R.M. and Montenegro, O. and Homs, B. and Moreto, Miquel},
     title  = {TuRTLe: A Unified Evaluation of LLMs for RTL Generation},
-    note   = {Submitted for publication as of March 2025.}
+    journal= {arXiv preprint arXiv:2504.01986},
+    year   = {2025},
+    note   = {Under review}
 }
-"""
+"""