[fbsync] Change transforms gallery thumbnail (#4505)

Summary:
* Change transforms gallery thumbnail

* Change visualization utils and repurposing annotations gallery thumbnails

Reviewed By: prabhat00155, NicolasHug

Differential Revision: D31309551

fbshipit-source-id: 608e3012562abe0f0c8dda15666d12e86a4e2d64

Author: datumbox

gallery/assets/repurposing_annotations_thumbnail.png

@@ -10,6 +10,7 @@
 methods into bounding boxes used by object detection methods).
 """
 
+# sphinx_gallery_thumbnail_path = "../../gallery/assets/repurposing_annotations_thumbnail.png"
 
 import os
 import numpy as np

gallery/assets/transforms_thumbnail.png

@@ -7,6 +7,8 @@
 torchvision.transforms module <transforms>`.
 """
 
+# sphinx_gallery_thumbnail_path = "../../gallery/assets/transforms_thumbnail.png"
+
 from PIL import Image
 from pathlib import Path
 import matplotlib.pyplot as plt

gallery/assets/visualization_utils_thumbnail.png

@@ -7,6 +7,7 @@
 visualizing images, bounding boxes, and segmentation masks.
 """
 
+# sphinx_gallery_thumbnail_path = "../../gallery/assets/visualization_utils_thumbnail.png"
 
 import torch
 import numpy as np