doc: clarify Nuxt 2

Author: harlan-zw

README.md

@@ -1,9 +1,10 @@
-# Markdownit
+# Markdownit for Nuxt 2
 [![npm](https://img.shields.io/npm/dt/@nuxtjs/markdownit.svg?style=flat-square)](https://npmjs.com/package/@nuxtjs/markdownit)
 [![npm (scoped with tag)](https://img.shields.io/npm/v/@nuxtjs/markdownit/latest.svg?style=flat-square)](https://npmjs.com/package/@nuxtjs/markdownit)
 
 Using [markdownit-loader](https://github.com/nuxt-community/markdownit-loader) and [markdown-it](https://github.com/markdown-it/markdown-it)
 
+
 ## Setup
 - Add `@nuxtjs/markdownit` dependency using yarn or npm to your project
 - Add `@nuxtjs/markdownit` to `modules` section of `nuxt.config.js`