pulldown-cmark 0.4.0

A pull parser for CommonMark
Want to contribute? Great! First, read this page.

### Before you contribute
Before you start working on a larger contribution, you should get in touch with
us first through the issue tracker with your idea so that we can help out and
possibly guide you. Coordinating up front makes it much easier to avoid
frustration later on.

### Code reviews
All submissions, including submissions by project members, require review. We
use GitHub pull requests for this purpose.