[Model Card] standardize T2I Lora model card (#6940)

standardize model card t2i-lora

examples/text_to_image/train_text_to_image_lora.py

@@ -45,6 +45,7 @@ from diffusers import AutoencoderKL, DDPMScheduler, DiffusionPipeline, StableDif
 from diffusers.optimization import get_scheduler
 from diffusers.training_utils import cast_training_params, compute_snr
 from diffusers.utils import check_min_version, convert_state_dict_to_diffusers, is_wandb_available
+from diffusers.utils.hub_utils import load_or_create_model_card, populate_model_card
 from diffusers.utils.import_utils import is_xformers_available
 from diffusers.utils.torch_utils import is_compiled_module
 
@@ -61,26 +62,31 @@ def save_model_card(repo_id: str, images=None, base_model=str, dataset_name=str,
         image.save(os.path.join(repo_folder, f"image_{i}.png"))
         img_str += f"![img_{i}](./image_{i}.png)\n"
 
-    yaml = f"""
----
-license: creativeml-openrail-m
-base_model: {base_model}
-tags:
-- stable-diffusion
-- stable-diffusion-diffusers
-- text-to-image
-- diffusers
-- lora
-inference: true
----
-    """
-    model_card = f"""
+    model_description = f"""
 # LoRA text2image fine-tuning - {repo_id}
 These are LoRA adaption weights for {base_model}. The weights were fine-tuned on the {dataset_name} dataset. You can find some example images in the following. \n
 {img_str}
 """
-    with open(os.path.join(repo_folder, "README.md"), "w") as f:
-        f.write(yaml + model_card)
+
+    model_card = load_or_create_model_card(
+        repo_id_or_path=repo_id,
+        from_training=True,
+        license="creativeml-openrail-m",
+        base_model=base_model,
+        model_description=model_description,
+        inference=True,
+    )
+
+    tags = [
+        "stable-diffusion",
+        "stable-diffusion-diffusers",
+        "text-to-image",
+        "diffusers",
+        "lora",
+    ]
+    model_card = populate_model_card(model_card, tags=tags)
+
+    model_card.save(os.path.join(repo_folder, "README.md"))
 
 
 def parse_args():