v1.2.0

Added

• Installation guide for Homebrew (#353)
• Mention Node.js >= 12 requirement in README (#359, #361 by @jlevon)

Changed

• Upgrade Marpit to v2.1.0 (#365)
  • Follow the latest CommonMark spec 0.30
• Upgrade Marp Core to v2.1.0 (#365)
  • math global directive for switching math typesetting library in current Markdown
• Upgrade dependent packages to the latest (#365)

Removed

• Installation guide for not-maintained Chocolatey (#350)