I'm submitting a...

[ ] Regression (a behavior that used to work and stopped working in a new release)
[ ] Bug report  
[ ] Feature request
[x] Documentation issue or request
[ ] Support request => Please do not submit support request here, instead see https://github.com/angular/angular/blob/master/CONTRIBUTING.md#question

Current behavior

In the documentation for the UpgradeModule (https://angular.io/api/upgrade/static/UpgradeModule), in the "Mental Model" section, the page states:

8. AngularJS is always bootstrapped first and owns the root component.

However, in the "Example" section that follows, the code and comments seem to suggest the opposite:

// First we bootstrap the Angular HybridModule
// (We are using the dynamic browser platform as this example has not been compiled AoT)
platformBrowserDynamic().bootstrapModule(Ng2AppModule).then(ref => {
  // Once Angular bootstrap is complete then we bootstrap the AngularJS module
  const upgrade = ref.injector.get(UpgradeModule) as UpgradeModule;
  upgrade.bootstrap(document.body, [ng1AppModule.name]);
});

Note the comment: "Once Angular bootstrap is complete then we bootstrap the AngularJS module".

Further, the general "Upgrading from AngularJS" documentation page (https://angular.io/guide/upgrade) also seems to suggest that Angular should be bootstrapped first, followed by AngularJS:

Bootstrapping hybrid applications

To bootstrap a hybrid application, you must bootstrap each of the Angular and AngularJS parts of the application. You must bootstrap the Angular bits first and then ask the UpgradeModule to bootstrap the AngularJS bits next.

Expected behavior

The documentation should be consistent on which framework should be bootstrapped first.

Environment

Angular version: 5.2.9