Add new DOI and revision number to citation

README.md

@@ -399,11 +399,11 @@ If you use this dataset in your research, please cite both it and our associated
 **Data**
 ```
 @dataset{treeoflife_200m,
-  title = {{T}ree{O}f{L}ife-200{M} (Revision <commit>)}, 
+  title = {{T}ree{O}f{L}ife-200{M} (Revision 94bbc0b)}, 
   author = {Jianyang Gu and Samuel Stevens and Elizabeth G Campolongo and Matthew J Thompson and Net Zhang and Jiaman Wu and Andrei Kopanev and Zheda Mai and Alexander E. White and James Balhoff and Wasila M Dahdul and Daniel Rubenstein and Hilmar Lapp and Tanya Berger-Wolf and Wei-Lun Chao and Yu Su},
   year = {2026},
   url = {https://huggingface.co/datasets/imageomics/TreeOfLife-200M},
-  doi = {<update on release>},
+  doi = {10.57967/hf/8980},
   publisher = {Hugging Face}
 }
 ```