update `create_model_card` to properly save peft details when using Trainer with PEFT (#27754)
* update `create_model_card` to properly save peft details when using Trainer with PEFT
* nit
* Apply suggestions from code review
Co-authored-by: Benjamin Bossan <BenjaminBossan@users.noreply.github.com>
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Co-authored-by: Benjamin Bossan <BenjaminBossan@users.noreply.github.com>