Since the project is licensed under MIT License (https://github.com/TandyRum1024/gms-bjortfx-filter/blob/master/LICENSE.txt),
You would include this (https://github.com/TandyRum1024/gms-bjortfx-filter/blob/master/LICENSE.txt) copyright notice/license in your project & credit me... In ideal case, of course.
But in scenario where including a license file isn't just possible, then just crediting me would be enough! (something like 'This project uses BJÖRTFX by ZIK')