Adding language selector to the header?

Hi! I really like this theme, but I want to add a language bar to have a multilingual blog. I have read [this](https://medium.com/i18n-and-l10n-resources-for-developers/i18n-tutorial-how-to-go-multilingual-with-hugo-a34953a7470c) post on medium about how to work with multilingual blogs, but is targeted to the *Aether* theme.

I'm not a web developer, and my knowledge of HTML and CSS it's very basic, but the post include a little html and CSS code to add a language selector, targeted to the aether theme though, and isn't "compatible" with archie. How I can add a little selector like that? Thanks!!!

The issue names no Archie files or tests; start by locating the theme's header entry point and reviewing Hugo's multilingual-blog guidance alongside the linked Aether example. Done means a language selector is present in the header and supports the site's multilingual blog configuration without breaking the theme layout.

Written by the indexing model from the issue text.