[Doctest] Add `configuration_vit.py` (#19561)

* ViT Config for doctest

src/transformers/models/vit/configuration_vit.py

@@ -77,12 +77,12 @@ class ViTConfig(PretrainedConfig):
     Example:
 
     ```python
-    >>> from transformers import ViTModel, ViTConfig
+    >>> from transformers import ViTConfig, ViTModel
 
     >>> # Initializing a ViT vit-base-patch16-224 style configuration
     >>> configuration = ViTConfig()
 
-    >>> # Initializing a model from the vit-base-patch16-224 style configuration
+    >>> # Initializing a model (with random weights) from the vit-base-patch16-224 style configuration
     >>> model = ViTModel(configuration)
 
     >>> # Accessing the model configuration

utils/documentation_tests.txt

@@ -99,6 +99,7 @@ src/transformers/models/van/modeling_van.py
 src/transformers/models/videomae/modeling_videomae.py
 src/transformers/models/vilt/modeling_vilt.py
 src/transformers/models/vision_encoder_decoder/modeling_vision_encoder_decoder.py
+src/transformers/models/vit/configuration_vit.py
 src/transformers/models/vit/modeling_vit.py
 src/transformers/models/vit/modeling_tf_vit.py
 src/transformers/models/vit_mae/modeling_vit_mae.py