Add legacy redirects to posts, add canonical ref

laundry/index.html

@@ -4,6 +4,7 @@
         <meta charset="UTF-8">
         <meta http-equiv="refresh" content="1;url=http://laundry.hallada.net">
         <link rel="shortcut icon" href="/favicon.png" />
+        <link rel="canonical" href="http://laundry.hallada.net"/>
         <script type="text/javascript">
             window.location.href = "http://laundry.hallada.net"
         </script>