Fix calendar container ID and improve HTML structure

Updated the calendar container div ID and ensured proper HTML structure.

Author: StevenClontz

events.md

@@ -8,4 +8,5 @@ const timezone = Intl.DateTimeFormat().resolvedOptions().timeZone
 const html = `<iframe src="https://calendar.google.com/calendar/embed?src=7000a514e4c452c330b7786deba4a311e5d2e7aac1951ba87451e2b0961882a8%40group.calendar.google.com&ctz=${timezone}" style=" border-width:0 " width="800" height="600" frameborder="0" scrolling="no"></iframe>`
 document.getElementById('calendar-container').innerHTML = html;
 </script>
-<div class="calendar-container"></div>
+<div id="calendar-container"></div>
+