Update app.py

app.py

@@ -6,6 +6,7 @@ from pathlib import Path
 models = [
     {"name": "Stable Diffusion 2", "url": "stabilityai/stable-diffusion-2-1"},
     {"name": "stability AI", "url": "stabilityai/stable-diffusion-2-1-base"},
+    {"name": "XL-Refiner-1.0", "url": "stabilityai/stable-diffusion-xl-refiner-1.0"},
     {"name": "Future Diffusion", "url": "nitrosocke/Future-Diffusion"},
     {"name": "JWST Deep Space Diffusion", "url": "dallinmackay/JWST-Deep-Space-diffusion"},
     {"name": "Robo Diffusion 3 Base", "url": "nousr/robo-diffusion-2-base"},