Add main translator list?

[inductor]

So that those who try to fix mistranslation/typo and assign to a right person as a reviewer properly

https://github.com/bagder/http3-explained/blob/master/HOWTO-TRANSLATE.md#push-rights

[bagder]

That's a good idea. We could list both the full name as well as github user name there!

[bagder]

Implemented