Fix Fuyu doc typos (#29601)

fix fuyu docs

docs/source/en/model_doc/fuyu.md

@@ -81,7 +81,7 @@ text_prompt = "Generate a coco-style caption.\\n"
 
 bus_image_url = "https://huggingface.co/datasets/hf-internal-testing/fixtures-captioning/resolve/main/bus.png"
 bus_image_pil = Image.open(io.BytesIO(requests.get(bus_image_url).content))
-inputs_to_model = processor(text=text_prompt, images=image_pil)
+inputs_to_model = processor(text=text_prompt, images=bus_image_pil)
 
 
 ```

src/transformers/models/fuyu/modeling_fuyu.py

@@ -246,7 +246,7 @@ class FuyuForCausalLM(FuyuPreTrainedModel):
         >>> image = Image.open(requests.get(url, stream=True).raw)
         >>> prompt = "Generate a coco-style caption.\n"
 
-        >>> inputs = processor(text=text_prompt, images=image, return_tensors="pt")
+        >>> inputs = processor(text=prompt, images=image, return_tensors="pt")
         >>> outputs = model(**inputs)
 
         >>> generated_ids = model.generate(**model_inputs, max_new_tokens=7)