Merge README CSS with body CSS

[jpsim]

#84 introduced separate styling for README body, which should be coalesced with general body CSS.

[beltex]

One more thing to keep in mind regarding this, though minor, is that section titles (Classes, Global Variables, Structs, etc.) on the left hand menu bar should be black, not grey, so that there is some contrast between them and the items listed in each section (which are grey).

Jazzy

Apple

[beltex]

This should come in handy

markdown - Stylesheets for rendering GitHub Flavored Markdown (via GitHub)

[orta]

and for further reference, CocoaPods.org's rendering, https://github.com/CocoaPods/cocoapods.org/blob/master/assets/stylesheets/pod.scss#L245-L369

[segiddins]

The README CSS is already based upon GitHub's styling.

[beltex]

Indeed! I thought it be helpful to mention nonetheless though, as GitHub just open sourced it. #84 mentioned that it was a basic README rendering, so I thought the official reference could be of some help, especially since it contains the SCSS (the current styling was pulled via web inspector (CSS) right?). Also, syntax highlighting in #84 was via this Gist which I'm guessing again was manually put together, totally works, but could be clunky to keep up to date.