In AIO docs, indicate thatReactiveFormsModule.withConfig method is deprecated #22640

export class ReactiveFormsModule {
  static withConfig(opts: {
    /** @deprecated from v6 */ warnOnNgModelWithFormControl: 'never' | 'once' | 'always'
  }): ModuleWithProviders {
    return {
      ngModule: ReactiveFormsModule,
      providers: [{
        provide: NG_MODEL_WITH_FORM_CONTROL_WARNING,
        useValue: opts.warnOnNgModelWithFormControl
      }]
    };
  }
}