Change Log

v0.1.0

[feat] support Y|M|MM.
[chore] simplified code.
[chore] Update README.md.

v0.0.4

[feat] support commonjs.

v0.0.2

[chore] Update README.md.
[chore] separate the type as Enum seconds | milliseconds.
[chore] update export as default

v0.0.1

[feat] Init duration-format.
[feat] Add test.