message: Resolve typo in announcement banner
diff: {% block announce %}
  <a href="https://discord.com/invite/7rfW4kg6B5" class="cli-announcement">
  - Join our brand new <strong>communtiy Discord server</strong>
  + Join our brand new <strong>community Discord server</strong>
  <span class="twemoji discord">
  {% include ".icons/fontawesome/brands/discord.svg" %}
  </span>
  