[Cherry-pick for 0.18] Just a typo (#8341) (#8355)

Co-authored-by: Anner <anner.de.jong@outlook.com>
Co-authored-by: Nicolas Hug <nh.nicolas.hug@gmail.com>

gallery/transforms/plot_transforms_e2e.py

@@ -151,8 +151,8 @@
     # We need a custom collation function here, since the object detection
     # models expect a sequence of images and target dictionaries. The default
     # collation function tries to torch.stack() the individual elements,
-    # which fails in general for object detection, because the number of bouding
-    # boxes varies between the images of a same batch.
+    # which fails in general for object detection, because the number of bounding
+    # boxes varies between the images of the same batch.
     collate_fn=lambda batch: tuple(zip(*batch)),
 )