Update README.md

README.md

@@ -61,7 +61,7 @@ It is a fine-tune of **Qwen 2.5-VL-7B** using ~10 k synthetic doc-to-Reasoning-t
 ## Training
 
 1. **SFT**: One-epoch supervised fine-tune on synthetic reasoning trace generated from public PDFs (10K input/output pairs).  
-2. **RL (GRPO)**: RL phase using a structure-aware reward (5K difficults image examples).
+2. **RL (GRPO)**: RL phase using a layout-centric reward (5K difficults image examples).
 
 **Model before GRPO loose 80% time vs post GRPO model (see win-rate matrix)**