Update README.md

README.md

@@ -11,7 +11,7 @@ widget:
     negative_prompt: Low quality
   output:
     url: images/photo_of_a_dog_1.jpeg
-base_model: stabilityai/stable-diffusion-xl-base-1.0
+base_model: runwayml/stable-diffusion-v1-5
 instance_prompt: photo of a dog
 license: creativeml-openrail-m
 ---