docs: update readme

docs: update readme

README.md

@@ -1,3 +1,5 @@
+[![@nuxtjs/google-fonts](./docs/static/preview.svg)](https://google-fonts.nuxtjs.org)
+
 # @nuxtjs/google-fonts
 
 [![npm version][npm-version-src]][npm-version-href]
@@ -8,7 +10,8 @@
 
 > [Google Fonts](https://developers.google.com/fonts) module for [NuxtJS](https://nuxtjs.org)
 
-[📖 **Release Notes**](./CHANGELOG.md)
+- [📖 **Release Notes**](./CHANGELOG.md)
+- [📖  Documentation](https://google-fonts.nuxtjs.org)
 
 ## Features
 
@@ -22,6 +25,8 @@
 - Download css/fonts to local project (No need external resources)
 - Encode fonts to base64
 
+[📖  Read more](https://google-fonts.nuxtjs.org)
+
 ## Setup
 
 1. Add `@nuxtjs/google-fonts` dependency to your project
@@ -61,6 +66,8 @@ export default {
 
 ## Options
 
+See [module options](https://google-fonts.nuxtjs.org/options).
+
 ### `families`
 
 - Type: `Object`
@@ -142,6 +149,8 @@ This option inject `<link rel="stylesheet" href="https://fonts.googleapis.com/cs
 
 ### `download`
 
+See [downloading Google Fonts](https://google-fonts.nuxtjs.org/downloading)
+
 - Type: `Boolean`
 - Default: `false`