[Doctest] Fixing the Doctest for imageGPT config (#19556)

src/transformers/models/imagegpt/configuration_imagegpt.py

@@ -79,12 +79,12 @@ class ImageGPTConfig(PretrainedConfig):
     Example:
 
     ```python
-    >>> from transformers import ImageGPTModel, ImageGPTConfig
+    >>> from transformers import ImageGPTConfig, ImageGPTModel
 
     >>> # Initializing a ImageGPT configuration
     >>> configuration = ImageGPTConfig()
 
-    >>> # Initializing a model from the configuration
+    >>> # Initializing a model (with random weights) from the configuration
     >>> model = ImageGPTModel(configuration)
 
     >>> # Accessing the model configuration

utils/documentation_tests.txt

@@ -48,6 +48,7 @@ src/transformers/models/gptj/modeling_gptj.py
 src/transformers/models/groupvit/modeling_groupvit.py
 src/transformers/models/groupvit/modeling_tf_groupvit.py
 src/transformers/models/hubert/modeling_hubert.py
+src/transformers/models/imagegpt/configuration_imagegpt.py
 src/transformers/models/layoutlm/modeling_layoutlm.py
 src/transformers/models/layoutlm/modeling_tf_layoutlm.py
 src/transformers/models/layoutlmv2/modeling_layoutlmv2.py