use production jsDelivr URL

Author: tyron

template/org.html

@@ -31,7 +31,7 @@ <h1><a href="/github.com/{{ .Repo }}@{{ .Tag }}">{{ .Repo }}@{{ .Tag }}</a></h1>
   </script>
 <script src="https://unpkg.com/react-table@7/dist/react-table.production.min.js"></script>
 <script type="module">
-    import { formatRelative } from 'https://esm.run/date-fns';
+    import { formatRelative } from 'https://cdn.jsdelivr.net/npm/date-fns/+esm';
 
     const { render } = ReactDOM;
     const { html } = htmReact;