where can I find this documentation he created?

I have the adventure book Morgansfort ... but did not read it yet... so it has gods and religion in it?

I have a few questions... I read the main rule book... I love the system... reminds me of the 80s when I played as a kid. my question is this... I love dming writing adventures... making maps and such.. but when it comes to me about designing lore for religion and gods I'm not a fan. I do want to us...