Fix comment in Bookworm systemd unit

packages/bookwyrm/nixos-module.nix

@@ -9,13 +9,18 @@ with pkgs . kernelmaft ;
 			"bookwyrm.service" = {
 				text = ''
 					[Unit]
+
 					After=network.target
 
 					[Service]
+
 					ExecStartPre=${coreutils-full}/bin/ln -s ${bookwyrm}/var/lib/bookwyrm/VERSION /var/lib/bookwyrm/
 					ExecStart=${bookwyrm}/bin/bookwyrm
+
 					WorkingDirectory=/var/lib/bookwyrm
-					StateDirectory=bookwyrm  # Creates /var/lib/bookwyrm directory
+
+					# Creates /var/lib/bookwyrm directory
+					StateDirectory=bookwyrm
 				'' ;
 			} ;
 		} ;