Update README.md

add model descriptions

README.md

@@ -12,4 +12,12 @@ metrics:
 - f1-score
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+# camembert-fr-covid-tweet-classification
+This model is a fine-tune checkpoint of [Yanzhu/bertweetfr-base](https://huggingface.co/Yanzhu/bertweetfr-base), fine-tuned on SST-2.
+This model reaches an accuracy of 66.0 on the dev ~set (for comparison, Bert bert-base-uncased version reaches an accuracy of 92.7)~.
+# Fine-tuning hyper-parameters
+- learning_rate = 1e-5
+- batch_size = 32
+- warmup = 600
+- max_seq_length = 128
+- num_train_epochs = 3.0