
  d.querySelectorAll('.remark-help-content table tr').forEach(tr => {
    const t = tr.querySelector('td:nth-child(2)').innerText;
    tr.querySelectorAll('td:first-child .key').forEach(key => {
      const k = key.innerText;
      if (/^[a-z]$/.test(k)) res[k] = t;  // must be a single letter (key)
    });
  });
  d.body.setAttribute('data-at-shortcutkeys', JSON.stringify(res));
})(document);
(function() {
  "use strict"
  // Replace <script> tags in slides area to make them executable
  var scripts = doc