A CommonMark parser for docutils.

• Provides md2html command
• Provides pycmark.CommonMarkParser component for docutils
• Customizable parser
  • All syntax are implemented as module
  • Developers can customize syntax via adding/removing the modules
• Compatibility
  • Passed all spec of CommonMark 0.29.
  • But docutils can't represent following document structure. Therefor they are disabled by default
    • Hard line break
    • deeper headings appeared before shallow one