Relative to absolute url in README



![](https://cloud.githubusercontent.com/assets/3849459/3485732/b6c2d4a0-03fa-11e4-9338-65567f17ee9a.png)
Should fix issue #33, although the regex is sketch.
Open to suggestions to improve this (Y)
Also, since this function looks like it just absolute-ifies GitHub image srcs, can you change the name to reflect that? E.g. something like `replaceWithAbsoluteGitHubImageSrc` or something. Can you also add a blank line above this function?

Alternatively, you can just inline this function into `render` above.