Fix the description for sample images

app.py

@@ -21,8 +21,12 @@ def get_sample_image_url(file_name: str) -> str:
 def get_sample_image_markdown(name: str) -> str:
     model_name = name.split()[0]
     if name == 'ddpm-128-exp000 (DDPM)':
+        scheduler = 'DDPM'
+        steps = 1000
         file_name = f'{model_name}.png'
     elif name == 'ddpm-128-exp000 (DDIM, 20 steps)':
+        scheduler = 'DDIM'
+        steps = 20
         file_name = f'{model_name}-ddim-20steps.png'
     else:
         raise ValueError
@@ -30,7 +34,8 @@ def get_sample_image_markdown(name: str) -> str:
     text = f'''
             - size: 128x128
             - seed: 0-99
-            - scheduler: DDPM
+            - scheduler: {scheduler}
+            - steps: {steps}
 
             ![sample images]({url})'''
     return text