Add meta description

Author: matteason

nuxt.config.ts

@@ -8,7 +8,8 @@ export default defineNuxtConfig({
       link: [{ rel: 'icon', type: 'image/x-icon', href: '/favicon.ico' }],
       meta: [
         { property: 'og:image', content: '/assets/images/gv-opengraph.png'},
-        { property: 'og:image:alt', content: 'GOV.UK Vue'}
+        { property: 'og:image:alt', content: 'GOV.UK Vue'},
+        { property: 'description', content: 'GOV.UK Vue provides Vue implementations of every component in the GOV.UK Design System.' }
       ],
       htmlAttrs: {
         class: 'govuk-template',