Fix: Replace non-executable >>> prompt style with valid syntax in example code

README.md

@@ -121,7 +121,7 @@ inputs = processor(raw_image, return_tensors="pt").to("cuda", torch.float16)
 
 out = model.generate(**inputs)
 print(processor.decode(out[0], skip_special_tokens=True))
->>> a woman sitting on the beach with her dog
+# >>> a woman sitting on the beach with her dog
 ```
 </details>