v0.2.4

Release v0.2.4

v0.2.3

v0.2.3

v0.2.2: Release 0.2.2

- Revert to use newlines in HTML `pre` tags
- Use default `Setup.hs` script

v0.2.1: Release 0.2.1

* Support `revealjs` output
* Use `<mark>` for HTML5 and RevealJS, `<em>` for HTML and GFM

v0.2.0: Release 0.2.0

* Use Lucid to render HTML, fixes issue #1

v0.1.1: Release 0.1.1

* Restructured modules
* Separated pretty printer
* Better error messages
* Improved validation
* Documentation styling improvements