docs: remove unused class

Author: atinux

docs/content/0.index.md

@@ -17,7 +17,7 @@ snippet: npm i -D @nuxtjs/tailwindcss
 ---
 
 #title
-Nuxt [Tailwind]{.text-primary-400}
+Nuxt Tailwind
 
 #description
 This module helps you set up [Tailwind CSS](https://tailwindcss.com) in your [Nuxt](https://nuxt.com) application in seconds.