docs(nixos): clarify registry option descriptions

configs/nixos/registry/route.nix

@@ -36,7 +36,7 @@
       domain = lib.mkOption {
         type = lib.types.str;
         example = "files.alexion.dev";
-        description = "Public domain for this route.";
+        description = "Records the public domain for this route.";
       };
 
       protocol = lib.mkOption {
@@ -45,14 +45,14 @@
           "https"
           "udp"
         ];
-        description = "Public protocol for this route.";
+        description = "Selects the public protocol for this route.";
       };
 
       port = lib.mkOption {
         type = lib.types.nullOr lib.types.port;
         default = null;
         example = 3923;
-        description = "HTTP backend port for an HTTP or HTTPS route.";
+        description = "Sets the HTTP backend port for an HTTP or HTTPS route.";
       };
 
       ports = lib.mkOption {
@@ -62,7 +62,7 @@
           2456
           2457
         ];
-        description = "UDP ports for a UDP route.";
+        description = "Sets the UDP ports for a UDP route.";
       };
     };
   };