If you want to learn about the rules of soccer, called the laws of the game, there are various jumping off points.

The International Football Association Board (IFAB) could be called the primary source:
https://www.theifab.com/

There's even an app available:
https://www.theifab.com/logapp/

Here are the IFAB laws in PDF format:
https://downloads.theifab.com/downloads/laws-of-the-game-2022-23?l=en

Here a summary of the law changes for AYSO:
https://aysovolunteers.org/wp-content/uploads/2022/07/Summary-of-LOTG-2022-23.pdf

Explore the rules that govern the WYSL. Because the WYSL frequently changes the URLs, resulting in error pages, we are not providing a direct link -- please visit the following tabs on their website to find a copy of the most up to date rules: About Us, Coach, Registrations. 
https://www.wyslsoccer.org/