Update AraBART number of parameters (#7)

- Update AraBART number of parameters (f5b585e028d71cdcff94d0a751a0d94c72abf4e4)


Co-authored-by: Moussa Kamal Eddine <moussaKam@users.noreply.huggingface.co>

README.md

@@ -193,7 +193,7 @@ Arabic evaluation results:
 | BLOOM (7.1B) | 40.9     |34.0  | 28.2     | 37.1  | 40.9      | 58.4 | 59.9   | 39.1       | 27.3  | 28.0       | 44.4       | 53.5        | 
 | LLaMA2 (13B) | 38.1  | 29.2  | 28.4     | 32.0  | 34.3      | 52.9 | 63.8   | 36.4       | 24.3  | 30.0       | 45.5       | 49.9        | 
 | AraT5 (220M) | 32.0     | 24.7  | 23.8     | 26.3  | 25.5      | 50.4 | 58.2   | 33.9       | 24.7  | 25.4       | 20.9       | 47.2        | 
-| AraBART (550M) | 36.7     | 26.5  | 27.5     | 34.3  | 28.1      | 52.6 | 57.1   | 34.6       | 25.1  | 28.6       | 49.8       | 48.8        | 
+| AraBART (139M) | 36.7     | 26.5  | 27.5     | 34.3  | 28.1      | 52.6 | 57.1   | 34.6       | 25.1  | 28.6       | 49.8       | 48.8        | 
 
 
 All tasks above report accuracy or F1 scores (the higher the better). For the sake of brevity, we do not include results over English tasks.