Textconf

What's Changed
* Export `RenderableEnum` by daizutabi in https://github.com/daizutabi/textconf/pull/20


**Full Changelog**: https://github.com/daizutabi/textconf/compare/0.2.2...0.2.3

What's Changed
* Implement `RenderableEnum` by daizutabi in https://github.com/daizutabi/textconf/pull/18


**Full Changelog**: https://github.com/daizutabi/textconf/compare/0.2.1...0.2.2

What's Changed
* Skip `context` method by daizutabi in https://github.com/daizutabi/textconf/pull/17


**Full Changelog**: https://github.com/daizutabi/textconf/compare/0.2.0...0.2.1

What's Changed
* Add context method by daizutabi in https://github.com/daizutabi/textconf/pull/10
* Update CI by daizutabi in https://github.com/daizutabi/textconf/pull/11


**Full Changelog**: https://github.com/daizutabi/textconf/compare/0.1.7...0.1.8