Remove co-author from model card

README.md

@@ -15,7 +15,7 @@ license: apache-2.0
 ## Paper
 
 **Generative Action Planning via Discrete Flow Matching with Online Reinforcement Fine-Tuning**
-- Authors: Muhammad Enrizky Brillian, Qiang Sun
+- Author: Muhammad Enrizky Brillian
 - Institution: University of Toronto Scarborough
 
 ## Training Details
@@ -31,7 +31,7 @@ If you use this model, please cite:
 ```bibtex
 @article{brillian2026flowgrpo,
   title={Generative Action Planning via Discrete Flow Matching with Online Reinforcement Fine-Tuning},
-  author={Brillian, Muhammad Enrizky and Sun, Qiang},
+  author={Brillian, Muhammad Enrizky},
   year={2026}
 }
 ```