[Model Card] standardize advanced diffusion training sdxl lora (#7615)
* model card gen code
* push modelcard creation
* remove optional from params
* add import
* add use_dora check
* correct lora var use in tags
* make style && make quality
---------
Co-authored-by: Aryan <aryan@huggingface.co>
Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>