Clean model card for public Graphite 1.0 4B release

Rewrite model card for Graphite 1.0 4B and add Apache-2.0 license

Final adapter after training (Trained with Unsloth)

Training in progress, step 2256, checkpoint

Training in progress, step 2256

Training in progress, step 2250, checkpoint

Training in progress, step 2250

Training in progress, step 2000, checkpoint

Training in progress, step 2000

Training in progress, step 1750, checkpoint

Training in progress, step 1750

Training in progress, step 1500, checkpoint

Training in progress, step 1500

Training in progress, step 1250, checkpoint

Training in progress, step 1250

Training in progress, step 1000, checkpoint

Training in progress, step 1000

Training in progress, step 750, checkpoint

Training in progress, step 750

Training in progress, step 500, checkpoint

Training in progress, step 500

Training in progress, step 250, checkpoint

Training in progress, step 250

initial commit