v0.4.0

• Added a {start=N} directive for custom step numbering
• Added a warning for an invalid titleTag option
• Added source map metadata to container tokens
• Added regression tests for blockquote and reference branches
• Added a tests workflow for push and pull requests
• Added Biome for linting and formatting
• Made steps follow the OS color scheme outside VitePress
• Parsed steps title as inline Markdown
• Updated dependencies

Full Changelog: v0.3.3...v0.4.0