feat(docs): Initial commit for docs in nuxt 3

docs/nuxt.config.ts

@@ -0,0 +1,11 @@
+import { defineNuxtConfig } from 'nuxt3'
+
+export default defineNuxtConfig({
+  meta: {
+    title: 'Vue Flow',
+    description: 'Vue Flow Documentation',
+  },
+  target: 'client',
+  ssr: false,
+  buildModules: ['nuxt-windicss'],
+})