Features:

• Replace Travis CI with GitHub Actions
• Add goreleaser
• Introduce Go Modules
• Versionup Go

Features:

• Support JSON format output

Fixes:

• Fix the concurrency problem (Thanks @hatajoe)
• Fix link to releases page (Thanks @mavimo)

Features:

• Support all of code search qualifiers
• Support colors on Windows (Thanks, @mattn)

Fixes:

• When total value of keywords are same, ranks are not same and the same keyword is duplicated
• When keyword has :(colon), 422 error is raised

🎉 First release.