[`SuperPoint`] Fix doc example (#29816)

[SuperPoint] Fix doc example

src/transformers/models/superpoint/modeling_superpoint.py

@@ -423,7 +423,7 @@ class SuperPointForKeypointDetection(SuperPointPreTrainedModel):
         Examples:
 
         ```python
-        >>> from transformers import AutoImageProcessor, AutoModel
+        >>> from transformers import AutoImageProcessor, SuperPointForKeypointDetection
         >>> import torch
         >>> from PIL import Image
         >>> import requests
@@ -432,7 +432,7 @@ class SuperPointForKeypointDetection(SuperPointPreTrainedModel):
         >>> image = Image.open(requests.get(url, stream=True).raw)
 
         >>> processor = AutoImageProcessor.from_pretrained("magic-leap-community/superpoint")
-        >>> model = AutoModel.from_pretrained("magic-leap-community/superpoint")
+        >>> model = SuperPointForKeypointDetection.from_pretrained("magic-leap-community/superpoint")
 
         >>> inputs = processor(image, return_tensors="pt")
         >>> outputs = model(**inputs)