devdocs/assets/javascripts/templates/tip_tmpl.js

app.templates.tipKeyNav = () => `\
<p class="_notif-text">
  <strong>ProTip</strong>
  <span class="_notif-info">(click to dismiss)</span>
<p class="_notif-text">
  Hit ${
    app.settings.get("arrowScroll") ? '<code class="_label">shift</code> +' : ""
  } <code class="_label">&darr;</code> <code class="_label">&uarr;</code> <code class="_label">&larr;</code> <code class="_label">&rarr;</code> to navigate the sidebar.<br>
  Hit <code class="_label">space / shift space</code>${
    app.settings.get("arrowScroll")
      ? ' or <code class="_label">&darr;/&uarr;</code>'
      : ', <code class="_label">alt &darr;/&uarr;</code> or <code class="_label">shift &darr;/&uarr;</code>'
  } to scroll the page.
<p class="_notif-text">
  <a href="/help#shortcuts" class="_notif-link">See all keyboard shortcuts</a>\
`;