Docs: https://akveo.github.io/nebular/#/docs/auth/configuring-ui, wrong component referenced

[cunundrummer]

Issue type

I'm submitting a ... (check one with "x")

• [ x ] bug report
• feature request

Issue description

Wrong component referenced in the Custom Ui Components router in Nebular Documentation -> Configuring Ui page.

Steps to reproduce:

Go to the link to doc

...
export const routes: Routes = [
  // ... 

  {
    path: 'auth',
    component: NgxAuthComponent,
    children: [
      {
        path: '',
        component: NgxLoginComponent,
      },
      {
        path: 'login',
        component: NgxRegisterComponent, <------- should be NgxLoginComponent
      },
      {
        path: 'register',
        component: NgxRegisterComponent,
      },
      {
        path: 'logout',
        component: NgxLogoutComponent,
      },
....

I have checked app-routing.module.ts and it is good there.