Login controller example at the readme

[YaLehin]

At the readme, there is an example of authenticating function realization. As this action is the result of submitting the form, then we need to stop default behaviour (reloading page). So, the function must be like

  @action
  async authenticate(ev) {
    ev.preventDefault();
    let { identification, password } = this;
...

Otherwise, the page will be reloaded and response can't be caught.