Release v0.3.1

Merge pull request #18 from michimani/fix/17/readme

fix README #17

Release v0.3.0

Merge pull request #13 from michimani/feature/12/set-pro-or-free-by-env

set authn key and plan by env when creating new client #12

Release v0.2.0

Merge pull request #9 from michimani/issue/1/support-more-translate-o…

Release v0.1.5

Merge pull request #4 from michimani/issue/3/fix-languages-api

remove params for Languages API #3

Release v0.1.4

add error code test

Release v0.1.3

update README.md

Release v0.1.2

fix module pathes

Release v0.1.0

fix workflow