message: Update watchCodeTs.ts
  `number` field does not exists in `IFormInputs`.
  It should be replaced to `age` field. :)
diff: @@ -11,7 +11,7 @@ function App() {
  const { register, watch, formState: { errors }, handleSubmit } = useForm<IFormInputs>();
  const watchShowAge = watch("showAge", false); // you can supply default value as second argument
  const watchAllFields = watch(); // when pass nothing as argument, you are watching everything
  - const watchFields = watch(["showAge", "number"]); // you can also target specific fields by their names
  + const watchFields = watch(["showAge", "age"]); // you can also target specific fields by their names
  const onSubmit = (data: IFormInputs) => console.log(data);
  