Update README.md

README.md

@@ -11,7 +11,7 @@ We also provide a sister model at [Clinical-Longformer](https://huggingface.co/y
 
 
 ### Pre-training
-We initialized Clinical-BigBird from the pre-trained weights of the base version of BigBird. The pre-training process was distributed in parallel to 6 32GB Tesla V100 GPUs. FP16 precision was enabled to accelerate training. We pre-trained Clinical-BigBird for 300,000 steps with batch size of 6×2. The learning rates were 3e-5 for both models. The entire pre-training process took more than 2 weeks. 
+We initialized Clinical-BigBird from the pre-trained weights of the base version of BigBird. The pre-training process was distributed in parallel to 6 32GB Tesla V100 GPUs. FP16 precision was enabled to accelerate training. We pre-trained Clinical-BigBird for 300,000 steps with batch size of 6×2. The learning rates were 3e-5. The entire pre-training process took more than 2 weeks. 
 
 
 ### Usage