inline svg and add mastodon

data/siteMetadata.js

@@ -9,8 +9,8 @@ const siteMetadata = {
   siteUrl: 'https://tailwind-nextjs-starter-blog.vercel.app',
   siteRepo: 'https://github.com/timlrx/tailwind-nextjs-starter-blog',
   siteLogo: '/static/images/logo.png',
-  image: '/static/images/avatar.png',
   socialBanner: '/static/images/twitter-card.png',
+  mastodon: 'https://mastodon.social/@mastodonuser',
   email: 'address@yoursite.com',
   github: 'https://github.com',
   twitter: 'https://twitter.com/Twitter',