I've tried to change the `lang` attribute on `<html>` using YAML front matter, but I probably miss something because it doesn't work. This is what I do for each page: ``` --- lang: fr-FR --- ``` `$page.frontmatter.lang` is then equal to `fr-FR`, but `$lang` is still `en-US`. The only way I've found is to use the `locales` option in `.vuepress/config.js`: ``` locales: { "/": { lang: "fr-FR" } } ``` but it's weird, and activate the `languages` link in the navbar.