Fix spacing in Hydra configuration

networks/default.nix

@@ -62,7 +62,7 @@ in {
 			        minimumDiskFreeEvaluator = 20;
 			        buildMachinesFiles = pkgs.lib.mkIf (config.nix.buildMachines == []) [];
 			        extraConfig = ''
-			            store_uri = file:///var/lib/hydra-builds?secret-key=/var/lib/hydra/binary-cache.key&write-nar-listing=1
+						store_uri = file:///var/lib/hydra-builds?secret-key=/var/lib/hydra/binary-cache.key&write-nar-listing=1
 						binary_cache_public_uri = https://nix-cache.cryto.net
 			        '';
 			    };