How to install:

1 navigate to your .minecraft/saves folder
2 drag the "datapacks" and "resource" files into the worlds file without unzipping the "resource" one
3 go into your world
4 your done! enjoy!

If you need help installing the datapack you can watch this video:
https://www.youtube.com/watch?v=ykudh27ayyY&t=1s