v0.1.0

• Overhaul logging and error reporting
• Support .dj file extension in addition to .djot
• Configuration
  • Switch from camel case to snake case for config keys
  • Remove or refactor many config options
• Markup features
  • Code blocks with multiple tabs
  • Allow configuring a default syntax highlighting language for code blocks and inline verbatims
  • Support GitHub Flavored Markdown syntax for alerts
  • Markup in headings appears in "next" and "previous" links