What do I need to create a Wiki style page? I am confused at this point.

Hi guys,
I am at the point of being super confused. I purchased one theme from Discy thinking Ill be able to make a Wiki style page, the reason I purchased that one is simply because it was recommend to me by an article and it looked nice at first. But as I dig more into the theme I realized its not what I am looking for. Now that I burned 60$ for nothing, I would like to ask here if someone could point out to me what exactly I need to buy to be able to create or have decent looking wiki style page?