Cleanup for e2e gallery example for transforms v2 (#7318)

docs/source/conf.py

@@ -62,6 +62,7 @@ sphinx_gallery_conf = {
     "gallery_dirs": "auto_examples",  # path to where to save gallery generated output
     "backreferences_dir": "gen_modules/backreferences",
     "doc_module": ("torchvision",),
+    "remove_config_comments": True,
 }
 
 napoleon_use_ivar = True

gallery/plot_transforms_v2_e2e.py

 """
 ==================================================
-transforms v2: End-to-end object detection example
+Transforms v2: End-to-end object detection example
 ==================================================
 
 Object detection is not supported out of the box by ``torchvision.transforms`` v1, since it only supports images.
@@ -20,7 +20,6 @@ import torch.utils.data
 import torchvision
 
 
-# sphinx_gallery_thumbnail_number = -1
 def show(sample):
     import matplotlib.pyplot as plt
 
@@ -125,6 +124,7 @@ dataset = datasets.wrap_dataset_for_transforms_v2(dataset)
 torch.manual_seed(3141)
 sample = dataset[0]
 
+# sphinx_gallery_thumbnail_number = 2
 show(sample)