Add https://www.reddit.com/r/Ultralytics/ badge (#13284)

* Refactor code for speed and clarity

* Update README.zh-CN.md

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

---------

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

export.py

@@ -91,6 +91,8 @@ MACOS = platform.system() == "Darwin"  # macOS environment
 
 
 class iOSModel(torch.nn.Module):
+    """An iOS-compatible wrapper for YOLOv5 models that normalizes input images based on their dimensions."""
+
     def __init__(self, model, im):
         """
         Initializes an iOS compatible model with normalization based on image dimensions.