Enable syntax highlighting for inline code

[RyanGlScott]

Currently, you can syntax-highlight code blocks. For example,

```haskell
main :: IO ()
main = putStrLn "Hello, World!"
```

renders as

main :: IO ()
main = putStrLn "Hello, World!"

However, you cannot do the same with inline code such as

`main :: IO ()`

or

```main :: IO ()```

both of which get rendered as main :: IO () (without syntax highlighting) when used inline. It would be nice to have something like

```haskell main :: IO ()```

that gives you inline syntax-highlighting (right now, that would render as haskell main :: IO ()).

[gjtorikian]

I don't disagree with this. I wonder what the performance implications would be.

In any case, we use html-pipeline, an open-source tool written by a GitHubber, to support syntax highlighting. Sorry to reroute you, but I suggest you open an Issue on that repository for this. I'll close this one out.

You'd basically need to change this line to match on code tags, as well as pre.