update model card README.md

End of training

Training in progress, step 6500

Training in progress, step 6000

Training in progress, step 5500

Training in progress, step 5000

Training in progress, step 4500

Training in progress, step 4000

Training in progress, step 3500

Training in progress, step 3000

Training in progress, step 2500

Training in progress, step 2000

Training in progress, step 1500

Training in progress, step 1000

Training in progress, step 500

initial commit