[Doctest] Add configuration_vision_encoder_decoder.py (#19583)

* adds vision_encoder_decoder to Doc tests

* keep the initial order

src/transformers/models/vision_encoder_decoder/configuration_vision_encoder_decoder.py

@@ -60,7 +60,7 @@ class VisionEncoderDecoderConfig(PretrainedConfig):
 
     >>> config = VisionEncoderDecoderConfig.from_encoder_decoder_configs(config_encoder, config_decoder)
 
-    >>> # Initializing a ViTBert model from a ViT & bert-base-uncased style configurations
+    >>> # Initializing a ViTBert model (with random weights) from a ViT & bert-base-uncased style configurations
     >>> model = VisionEncoderDecoderModel(config=config)
 
     >>> # Accessing the model configuration

utils/documentation_tests.txt

@@ -117,6 +117,7 @@ src/transformers/models/unispeech_sat/modeling_unispeech_sat.py
 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/configuration_vision_encoder_decoder.py
 src/transformers/models/vision_encoder_decoder/modeling_vision_encoder_decoder.py
 src/transformers/models/vision_text_dual_encoder/configuration_vision_text_dual_encoder.py
 src/transformers/models/vit/configuration_vit.py