Update model card: add zen/zenlm tags, fix branding

Update model card: Remove emojis, fix usage example, remove zoo-gym tag, add diffusers/zenlm tags, remove fake benchmarks

fix: update _base_model to zenlm/zen-image-edit

fix: remove upstream model references from README

Add model weights

Add files using upload-large-folder tool

Add format information

Add model configuration

Add Zen-Image-Edit model card

initial commit