[mercure] option enable_profiler in configuration of mercure is not work

[rimoi]

Symfony version(s) affected: 4.4.2
and versions of mercure :

/* ... */
    "symfony/mercure": "^0.3",
    "symfony/mercure-bundle": "^0.2",
/* ... */

Description
Hi,
I think we have bug in documentation for debugging option when I put like this:

# config/packages/dev/mercure.yaml
mercure:
    enable_profiler: '%kernel.debug%'

I have this :

$ bin/console de:config mercure

In ArrayNode.php line 327:                                                                                                   
  Unrecognized option "enable_profiler" under "mercure". Available options are "default_hub", "hubs".  

And when i put like this :

# config/packages/dev/mercure.yaml
mercure:
    hubs:
        enable_profiler: '%kernel.debug%'
        default:
            url: '%env(MERCURE_PUBLISH_URL)%'
            jwt_provider: App\Services\Mercure\JwtProvider

I have this :

$ bin/console de:config mercure

In MercureExtension.php line 51:
                                         
  Notice: Undefined index: jwt_provider  

Thanks