update readme

README.md

@@ -235,8 +235,8 @@ image = pipe(
     # For the distilled model, use 8 steps for faster inference.
     # For the non-distilled model, use 50 steps for better quality
     num_inference_steps=8 if "distilled" in model_name else 50, 
-    guidance_scale=3.25,
-    shift=4,
+    guidance_scale=3.5,
+    shift=5,
     seed=649151,
 )
 

README_CN.md

@@ -207,8 +207,8 @@ image = pipe(
     # 对于蒸馏版模型，建议使用 8 步以加快推理速度；
     # 对于非蒸馏版模型，建议使用 50 步以获得更高画质
     num_inference_steps=8 if "distilled" in model_name else 50, 
-    guidance_scale=3.25,
-    shift=4,
+    guidance_scale=3.5,
+    shift=5,
     seed=649151,
 )