Update README.md (#13283)

* Update README.md

Signed-off-by: Glenn Jocher <glenn.jocher@ultralytics.com>

* Auto-format by https://ultralytics.com/actions

---------

Signed-off-by: Glenn Jocher <glenn.jocher@ultralytics.com>
Co-authored-by: UltralyticsAssistant <web@ultralytics.com>

hubconf.py

@@ -1,6 +1,6 @@
 # Ultralytics YOLOv5 🚀, AGPL-3.0 license
 """
-PyTorch Hub models https://pytorch.org/hub/ultralytics_yolov5
+PyTorch Hub models https://pytorch.org/hub/ultralytics_yolov5.
 
 Usage:
     import torch