Update README.md

README.md

@@ -73,7 +73,7 @@ prompt = "a young college student, walking on the street, campus background, pho
 image = pipe(prompt, 
              num_inference_steps=24, 
              guidance_scale=3.5,
-             width=768, height=1024,
+             width=1920, height=1080,
             ).images[0]
 image.save(f"example.png")
 ```