Add CITATION.md file to integrate with GitHub (#2)

* Create CITATION.md

* Update CITATION.md

Author: heethesh

CITATION.md

@@ -0,0 +1,8 @@
+```bibtex
+@misc{aevascenes,
+  title        = {AevaScenes: A Dataset and Benchmark for FMCW LiDAR Perception},
+  author       = {Narasimhan, Gautham Narayan and Vhavle, Heethesh and Vishvanatha, Kumar Bhargav and Reuther, James},
+  year         = {2025},
+  url          = {https://scenes.aeva.com/},
+}
+```