Update app.py

app.py

@@ -72,6 +72,9 @@ def set_base_model(base_model_id):
 def update_pixel_ratio(height, width):
     return round(height*width/1048576,3)
 
+def round_to_8(num):
+    return num - (num % 8)
+
 examples = [
     ['A serious capybara at work, wearing a suit',
     'low quality'],