What kind of code license, if I want to refer to this project

[Anch9999]

Hi binaryroot
this project is help me so much,
if I want base on this to refine and modify code in my android project,
what license I need to follow and notice,
because if no license means nobody can use, copy, distribute, or modify
but I guess this is not your intention, thanks so much
https://choosealicense.com/