Credit translators (& other contributors) in settings

[rugk]

Maybe we can credit the translator of the current version (i.e. the one, whose language is used in the browser.) of the add-on on the options page.

Just a small (translated) note of "This add-on has been translated into language by XY, XY. The add-on would also not be possible without all other contributors.". (end links to the contributor list)

And to not forget everyone, who contributed code or something else, we may just add a link to the whole CONTRIBUTORS file.

How do you like this idea?

[rugk]

(Actually, this issue itself is a good first issue… 😄)

[rugk]

Ref: Use this new feature to include links in the translation…

To do so, you need to update the Localizer submodule, as only the new version supports it. 😃

[rugk]

fixed by #183