Adding `safetensors` variant of this model

update model card README.md

Bioformer-LitCovid-v1.3h

Training in progress, epoch 5

Training in progress, epoch 4

Training in progress, epoch 3

Training in progress, epoch 2

Training in progress, epoch 1

Training in progress, epoch 2

Training in progress, epoch 1

Training in progress, epoch 5

Training in progress, epoch 4

Training in progress, epoch 3

Training in progress, epoch 2

Training in progress, epoch 1

Training in progress, epoch 3

Training in progress, epoch 2

Training in progress, epoch 1

Training in progress, epoch 1

Training in progress, epoch 5

Training in progress, epoch 4

Training in progress, epoch 3

Training in progress, epoch 2

Training in progress, epoch 1

Training in progress, epoch 1

Training in progress, epoch 5

Training in progress, epoch 4

Training in progress, epoch 3

Training in progress, epoch 2

Training in progress, epoch 1

Training in progress, epoch 2

Training in progress, epoch 1

Training in progress, epoch 5

Training in progress, epoch 4

Training in progress, epoch 3

Training in progress, epoch 2

Training in progress, epoch 1

Training in progress, epoch 5

Training in progress, epoch 4

Training in progress, epoch 3

Training in progress, epoch 2

Training in progress, epoch 1

Training in progress, epoch 2

Training in progress, epoch 1

initial commit