Update README with validation metrics

README.md

@@ -68,10 +68,10 @@ The final model released here is the `66%+` version.
 
 ## Evaluation Summary
 
-Held-out PhraseBank-style test results for the final `66%+` model:
+Validation results for the selected `75%+` configuration:
 
-- Accuracy: `80.41%`
-- Macro-F1: `0.8028`
+- Accuracy: `87.01%`
+- Macro-F1: `0.8564`
 
 ## Intended Use