You are welcome.
I think know that the best way you can learn how to create a new document type (e.g. the FAQ page) please refer to another more suitable guidenance here
. This article will show you how to create a new document type "products" and show them on the live page. You will see that creating the FAQ section can be done the same way.
As for the repear goes - repeaters are webparts which can display certain document on the site. Say you have a documents news under some folder. You want to show those news on some page. You will add this repeater and configure it like - I want to show document news, I want to have them ordered by date and I want to limit the selection for 3 latest news...+ much more settings. Then you set the Transformation which basically you use html code (with some macros) to tell the repeater how exactly to show the certain fields of news such as News Title, News text, Author etc. You will find these examples in the link above.
If you have further questions, feel free to ask.