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

## Description

The original example code contains REPL-style `>>>` prompts, which violate Hugging Face's standard for executable Model Card examples.

## Changes

All lines prefixed with `>>>` were replaced with syntactically valid Python code or comments.
For expected outputs, lines such as:

Replaced:
```python
>>> a woman sitting on the beach with her dog
```
with:
```python
# >>> a woman sitting on the beach with her dog
```

## Testing
The code has been successfully tested and runs without error.

## Note
This contribution is part of an ongoing research initiative to systematically identify and correct faulty example code in Hugging Face Model Cards.
We would appreciate a timely review and integration of this patch to support code reliability and enhance reproducibility for downstream users.

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>