Update README.md

README.md

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 # A Transformer model for inserting Vietnamese accent marks
 
-This model is finetuned from the XLM-Roberta Large.
+This model inserts accent marks (diacritics) for Vietnamese texts that don't have them (or texts with some words accented and some not). 
 
 Example input: Nhin nhung mua thu di  
 Target output: Nhìn những mùa thu đi
 
+
 ## Model training
 This problem was modelled as a token classification problem. For each input token, the goal is to asssign a "tag" that will transform it
 to the accented token.  
 
-For more details on the training process, please refer to this 
+This model is finetuned from the XLM-Roberta Large. For more details on the training process, please refer to this 
 <a href="https://peterhung.org/tech/insert-vietnamese-accent-transformer-model/" target="_blank">blog post</a>.