Better Rivulet

This is a datapack that adds better rivers to the original version. # 💡Features: - Generate better river curves # 🖼️Screenshots ### vanilla Overworld  ### Better Rivulet  ### This data package supports custom functions. - The modified document has been placed in the zip data package, you can open and edit it yourself (I'm sorry it's only in Chinese, I don't speak much English, so please translate it yourself).