Version 0.3.0
This version might cause a few backwards compatibility breaks, mostly in tests because the new parsed html comes with line breaks. I'm moving away from erusev's markdown parser to league/commonmark, since that offers extended markdown support (inline code, for instance, wasn't supported by the former dependency).
- moved to league/commonmark for markdown parsing
- adjusted video and audio tags to remove hardcoded media directories
- updated readme to include more examples, and how to create custom tag parser