Code blocks produce null children prop about markdown-to-jsx

[hugmanrique]

Found the issue, it was something to do with how I handle the compile output. Sorry for the spam 😬

[quantizor]

Single quote fences

I don't think that's a valid GFM syntax. Code fences must always be three backticks.

Also, this is working for me:

```rb
['a', 'b'].map { |x| x.uppercase }
\```

(ignore the escape, needed it so I could put the fence in a fence on github, heh)

[hugmanrique]

What I meant with single quote fences are these: hello, which are made with `.

Is the compile function used internally or does it use another method?

[quantizor]

Yeah, it's used internally. Hmm... I wonder what the issue could be. That all works fine in React 15.x...