Update README.md

README.md

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-<!-- This model card has been generated automatically according to the information the Trainer had access to. You
-should probably proofread and complete it, then remove this comment. -->
 
 # model_5M_base
 
-This model is a fine-tuned version of [gsarti/it5-base](https://huggingface.co/gsarti/it5-base) on an unknown dataset.
+This model is a fine-tuned version of [gsarti/it5-base](https://huggingface.co/gsarti/it5-base) on a dataset of Common Procurement Vocabulary (CPV) codes.
 
 ## Model description
 
-More information needed
+The model is trained on 3.2M pairs of Italian tender descriptions and the corresponding CPV code.
+
+Here an example:
+
+> {"source": "lavori lavori di pavimentazione delle vie san martino e santa Maddalena", "target": "45262321-7 - lavori di pavimentazione"}
 
 ## Intended uses & limitations
 
-More information needed
+This model can generate a CPV code given an Italian tender description.
 
 ## Training and evaluation data
 
-More information needed
+Training data are taken form the [ANAC website](https://dati.anticorruzione.it/opendata).
 
 ## Training procedure