More documentation on WikipediaTextFormattingDelegate

[brendanballon]

There are a few times WikipediaTextFormattingDelegate is mentioned but it is still unclear how to style the body of an article. In another issue that has since been closed, you referenced the style sheet of the official Wikipedia app but I am unable to get any raw html out of WikipediaKit. Any help or explanation on how to get raw html to then be styled or an example would be greatly appreciated.