Update README.md

Author: Sindhuja217

README.md

@@ -222,7 +222,7 @@ For dataset-related concerns, please contact the **Skywork authors** via their p
 
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-## 📖 Citation (Factual Preference Alignment)
+## 📖 Citation (Factuality-aware Direct Preference Optimization)
 
 If you find this code or dataset useful for your research, please consider citing: