docs(installation): add button to nuxt.new

Author: Sébastien Chopin

docs/content/1.docs/1.getting-started/2.installation.md

@@ -13,6 +13,10 @@ You can start playing with Nuxt 3 in your browser using our online sandboxes:
 :button-link[Play on StackBlitz]{href="https://stackblitz.com/github/nuxt/starter/tree/v3-stackblitz" blank .mr-2}
 :button-link[Play on CodeSandbox]{href="https://codesandbox.io/s/github/nuxt/starter/tree/v3-codesandbox" blank}
 
+Start with one our starters or themes directly by opening [nuxt.new](https://nuxt.new).
+
+:button-link[Discover nuxt.new]{href="https://nuxt.new" blank}
+
 ## Prerequisites
 
 Before getting started, please make sure you have installed the recommended setup.