message: improved message
diff: @@ -17,7 +17,10 @@ export default async function upgrade({ dev }: Options) {
  if (latest === getCurrentVersion()) {
  console.log(
  - `You're using the latest version of Lume: ${brightGreen(latest)}!`,
  + dev
  + ? "You're using the latest version of Lume:"
  + : "You're using the latest development version of Lume:",
  + brightGreen(latest),
  );
  console.log();
  return;
  