CREDITS.md

Credits

1. alextanhongpin for "How do I reverse a slice in go?"
2. CyrusBiotechnology for github.com/CyrusBiotechnology/go-har
3. dolmen for "What is a concise way to create a 2D slice in Go?"
4. jdeng for github.com/jdeng/goheif
5. pete911 for "How to format timestamp in outgoing JSON"
6. Shawn Blakesley for "Golang complex fold grüßen"