feat: update translations

Author: antfu

.vitepress/config.js

@@ -86,6 +86,10 @@ const Translations = [
     text: 'Việt Nam',
     link: 'https://vn.sli.dev{{pathname}}',
   },
+  {
+    text: 'Deutsch',
+    link: 'https://de.sli.dev{{pathname}}',
+  },
 ]
 
 const Customizations = [

README.md

@@ -12,6 +12,7 @@ Documentation for [Slidev](https://github.com/slidevjs/slidev)
 | Español | [docs-es](https://github.com/slidevjs/docs-es) | [es.sli.dev](https://es.sli.dev) | [@owlnai](https://github.com/owlnai) |
 | Русский | [docs-ru](https://github.com/slidevjs/docs-ru) | [ru.sli.dev](https://ru.sli.dev) | [@xesjkeee](https://github.com/xesjkeee) |
 | Việt Nam | [docs-vn](https://github.com/slidevjs/docs-vn) | [vn.sli.dev](https://vn.sli.dev) | [@bongudth](https://github.com/bongudth) |
+| Deutsch | [docs-de](https://github.com/slidevjs/docs-de) | [de.sli.dev](https://de.sli.dev) | [@fabiankachlock](https://github.com/fabiankachlock) |
 
 ## Start Server Locally