Upload config.json for updated GoEmotions BERT model

config.json

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+{"model_name": "bert-base-uncased", "num_labels": 28, "batch_size": 16, "max_length": 128, "epochs": 5, "learning_rate": 2e-05, "weight_decay": 0.01, "focal_loss_alpha": 1, "focal_loss_gamma": 2}