Some examples or documentation please

This is just what we need and grateful for your contribution but I find it really confusing. I see you have shortcodes with parameters but are they documented? Why would I want to create a project with a permalink and not use a regular page? I’m spending so much time trying to figure this out but some examples would be wonderful 🙂

https://ww.wp.xz.cn/plugins/woocommerce-quick-donation/