message: Fix `Command::batch` documentation
diff: @@ -62,7 +62,7 @@ impl<T> Command<T> {
  /// Creates a [`Command`] that performs the actions of all the given
  /// commands.
  ///
  - /// Once this command is run, all the futures will be exectued at once.
  + /// Once this command is run, all the commands will be exectued at once.
  ///
  /// [`Command`]: struct.Command.html
  pub fn batch(commands: impl Iterator<Item = Command<T>>) -> Self {
  