Update README.md

README.md

@@ -13,7 +13,7 @@ ConPGS Model is capable of generating paraphrases while controlling for semantic
 The semantic similarity can be controlled at six levels - 70, 75, 80, 85, 90 and 95 - the higher the level, the more similar the model outputs sentences with similar meanings.  
 The lexical similarity can be controlled in eight steps 5, 10, 15, 20, 25, 30, 35 and 40, the higher the level, the more the model outputs sentences with similar surfaces.
 
-This model is constructed by fine-tuning [BART-large](https://huggingface.co/facebook/bart-large).
+This model was constructed by fine-tuning [BART-large](https://huggingface.co/facebook/bart-large).
 
 
 ## How to use