zsh-syntax-highlighting/release.md

Release procedure (for developers):

• Check open issues and outstanding pull requests
• Confirm make test passes
  • check with multiple zsh versions
• Update changelog.md
• Remove -dev suffix from ./.version; Commit that; Tag it using git tag $(<.version); Increment ./.version and restore the -dev suffix; Commit that.
• Push with git push --tags
• Notify downstreams (OS packages)
  • anitya should autodetect the tag
• Update /topic on IRC