The theme should support the same languages as the projects that will use it

[flpm]

The theme should support the same languages (translations) that the projects using it in order to make sure that any text in the theme itself is also translated when the final document is built.

[tkoyama010]

@all-contributors please add @flpm for ideas

[allcontributors]

@tkoyama010

I've put up a pull request to add @flpm! 🎉