README: minor cleanups

* don't reference old symfony versions
* this bundle has a recipe now, so no need to require it being enabled manually

README.md

@@ -8,7 +8,7 @@
 
 DISCLAIMER: This bundle needs a specific ALMA configuration to work. Please contact [[email protected]](mailto:[email protected]) for more information.
 
-This Symfony 4.4 bundle provides API endpoints for
+This bundle provides API endpoints for
 
 - assigning a call number to a book
 - borrowing a book from the sublibrary
@@ -35,19 +35,6 @@ You can install the bundle directly from [packagist.org](https://packagist.org/p
 composer require dbp/relay-sublibrary-bundle
 ```
 
-## Integration into the API Server
-
-* Add the necessary bundles to your `config/bundles.php`:
-
-```php
-...
-Dbp\Relay\SublibraryBundle\DbpRelaySublibraryBundle::class => ['all' => true],
-Dbp\Relay\CoreBundle\DbpRelayCoreBundle::class => ['all' => true],
-];
-```
-
-* Run `composer install` to clear caches
-
 ## Configuration
 
 The bundle has configuration values that you can specify in your app, either by hardcoding it,