fix path

modules/raspi/mount-data.nix

@@ -23,7 +23,7 @@ fileSystems."/mnt/raspi" = {
   ];
 };
 
-fileSystems."/mnt/raspi-backup" = {
+fileSystems."/mnt/raspi-data" = {
   device = "raspberrypi.tail13f623.ts.net:/home/raspi/docker-data";
   fsType = "nfs4";
   options = [