v4.0.1

Update README with Gumroad info

v4.0

CHANGELOG

v3.1.0

CHANGELOG

Regex Support

Markdown Attribute Highlighting

v3.0.0

CHANGELOG

v2.1

• Tweaked the color for markdown code syntax to the purple that matches syntax keywords.

v2.0

From CHANGELOG.md:

• Embolden Swift language keywords.
• Embolden "Mark" keywords.
• Use SF Pro Text for comments and "Mark"s.
• Use a bright green color for compiler flags.
  • Not too garish — just slightly-more-conspicuous than the other primary colors in the palette 🙂.

v1.0

tweak intro paragraph