Update comments header (#4184)

data/SKU-110K.yaml

@@ -1,6 +1,6 @@
-# Copyright Ultralytics https://ultralytics.com, licensed under GNU GPL v3.0
+# YOLOv5 🚀 by Ultralytics https://ultralytics.com, licensed under GNU GPL v3.0
 # SKU-110K retail items dataset https://github.com/eg4000/SKU110K_CVPR19
-# YOLOv5 🚀 example usage: python train.py --data SKU-110K.yaml
+# Example usage: python train.py --data SKU-110K.yaml
 # parent
 # ├── yolov5
 # └── datasets