add temporary notice

index.html

@@ -9,12 +9,12 @@
 	<meta property="og:image" content="https://direkt.bahn.guru/assets/screenshot.png" />
 	<meta name="twitter:card" content="summary" />
 	<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" />
+	<meta http-equiv="refresh" content="0; url=https://bahn.guru" />
 	<link rel="icon" type="image/png" href="https://bahn.guru/assets/bahn.png" />
 	<link rel="stylesheet" href="assets/styles.css"/>
 	<link rel="stylesheet" href="assets/filter.css"/>
 	<link href='https://api.mapbox.com/mapbox-gl-js/v2.8.2/mapbox-gl.css' rel='stylesheet' />
 	<link rel="stylesheet" href="https://api.mapbox.com/mapbox-gl-js/plugins/mapbox-gl-geocoder/v4.7.0/mapbox-gl-geocoder.css" type="text/css">
-
 	<!-- the following script is used for cookie-less, GDPR compliant analytics.
 you can disable it at any time, e.g. using the NoScript or PrivacyBadger browser extensions,
 and the website will still work 100% fine. as a privately maintained open-source project,