Standalone example in `README.md` does not work

[boesing]

Bug Report

Q	A
Version(s)	* since it was added

Summary

The README.md example does not work due to the lack of the ConfigProvider of the memory adapter being passed to the ConfigAggregator.

Current behavior

Execution will fail, Memory adapter is not retrievable.

How to reproduce

use Laminas\Cache\ConfigProvider;
use Laminas\Cache\Service\StorageAdapterFactoryInterface;
use Laminas\Cache\Storage\Adapter\Memory;
use Laminas\ConfigAggregator\ConfigAggregator;
use Laminas\ServiceManager\ServiceManager;

$config = (new ConfigAggregator([
    ConfigProvider::class,
]))->getMergedConfig();

$dependencies = $config['dependencies'];

$container = new ServiceManager($dependencies);

/** @var StorageAdapterFactoryInterface $storageFactory */
$storageFactory = $container->get(StorageAdapterFactoryInterface::class);

$storage = $storageFactory->create(Memory::class); // ServiceNotFoundException

Expected behavior

$storage variable contains an instance of the Memory adapter.

[froschdesign]

The example should be removed from the readme file. Instead some links to the documentation should be added:

• Introduction
• Installation
• Quick Start / Basic Usage
• …