I'd like to know how to create a page for rules, like this: https://shotbow.net/forum/p/rules/

And have it added to the header for quick navigation. I'm inexperienced in html/css so i'll need help with that.

Same thing with the donate/donation page. I'd like it to be like a shop sort of: https://shotbow.net/forum/xp/shop

Where you can purchase an item, and be redirected to my paypal. I'm unsure if any of this is even possible, but would i'm sure it'd help a lot of sites.