Add planned maintenance message

themes/rain-theme/templates/page.html

@@ -31,5 +31,7 @@
 {% endblock %}
 {% block content %}
     {% include page.url[:-1] + "_header.html" ignore missing %}
+    <h3 class="instrument_status_warning">Planned maintenance: July 9-11, 2025</h3>
+    <p></p>
     {{page.content}}
 {% endblock %}