message: Limit gist auto-embeds to 12 lines
diff: @@ -19,7 +19,9 @@ async function embedGist(link) {
  const response = await fetch(`${link.href}.json`);
  const gistData = await response.json();
  const gistEl = createGistElement(gistData);
  - link.parentNode.attachShadow({mode: 'open'}).append(gistEl);
  + const shadowDom = link.parentNode.attachShadow({mode: 'open'});
  + shadowDom.append(gistEl);
  + shadowDom.append(<style>{'.gist .gist-data {max-height: 16em}'}</style>);
  }
  export default () => {
  select.all('.js-comment-body p a:only-child')
  