Update README.md

README.md

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 # Dzarashield
 
-Dzarashield is a fine-tuned model based on [DzaraBert](https://huggingface.co/Sifal/dzarabert) designed for text classification tasks. It specializes in hate speech detection for Arabic text.
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+Dzarashield is a fine-tuned model based on  [DzaraBert](https://huggingface.co/Sifal/dzarabert) . It specializes in hate speech detection for Algerian Arabic text (Darija).
+It has been trained on a dataset consisting of 13.5k documents, constructed from manually labeled documents and various sources, achieving an F1 score of 0.87 on a holdout test of 2.5k samples.
 
 ## Limitations