The code snippets below can be added to the Page Tags field of Version Options to manually set the images shown in X (formerly Twitter) post link previews.
<meta name="twitter:card" content="summary_large_image" />
<meta name="twitter:site" content="@digitalocean" />
<meta name="twitter:title" content="Sammy the Shark" />
<meta name="twitter:description" content="Senior Selachimorpha at DigitalOcean" />
<meta name="twitter:image" content="https://html.sammy-codes.com/images/large-profile.jpg" />