Version 2.0.0

What's Changed

• Upgrade libraries and CI by @tilfin in #10
• Refactoring and support ES module by @tilfin in #11
• Support types for both default and named export by @tilfin in #12

Full Changelog: 1.0.0...2.0.0

Version 1.0.0

• Support Node.js 12.x
• Support import default by ES modules
• Fix README