update image to share on twitter

Author: raphamorim

packages/website/siteConfig.js

@@ -96,8 +96,11 @@ const siteConfig = {
   cleanUrl: true,
 
   // Open Graph and Twitter card images.
-  ogImage: 'img/logo.png',
-  twitterImage: 'img/logo.png',
+  ogImage: 'img/logo-share.png',
+  twitterImage: 'img/logo-share.png',
+  metadata: [{
+    name: 'twitter:card', content: 'summary'
+  }],
 
   // You may provide arbitrary config keys to be used as needed by your
   // template. For example, if you need your repo's URL...