Update readme with installation and configuration details

Author: jerowork

README.md

@@ -2,4 +2,56 @@
 [![Software License](https://img.shields.io/badge/license-MIT-brightgreen.svg?style=flat)](LICENSE)
 [![PHP Version](https://img.shields.io/badge/php-%5E8.3-8892BF.svg?style=flat)](http://www.php.net)
 
-Gember Identity generator ([gember/event-sourcing](https://github.com/GemberPHP/event-sourcing)) implementation based on [symfony/uid](https://github.com/symfony/uid).
+[Gember Event Sourcing](https://github.com/GemberPHP/event-sourcing) Identity Generator adapter based on [symfony/uid](https://github.com/symfony/uid).
+
+> All external dependencies in Gember Event Sourcing are organized into separate packages,
+> making it easy to swap out a vendor adapter for another.
+
+## Installation
+Install with Composer:
+```bash
+composer require gember/identity-generator-symfony
+```
+
+## Configuration
+Bind this adapter to the `IdentityGenerator` interface in your service definitions.
+
+### Examples
+
+#### Vanilla PHP
+```php
+use Gember\IdentityGeneratorSymfony\Ulid\SymfonyUlidIdentityGenerator;
+use Gember\IdentityGeneratorSymfony\Uuid\SymfonyUuidIdentityGenerator;
+use Symfony\Component\Uid\Factory\UlidFactory;
+use Symfony\Component\Uid\Factory\UuidFactory;
+
+# ULID Identity Generator
+$ulidIdentityGenerator = new SymfonyUlidIdentityGenerator(
+    new UlidFactory(),
+);
+
+# UUID (v4) Identity Generator
+$uuidIdentityGenerator = new SymfonyUuidIdentityGenerator(
+    new UuidFactory(),
+);
+```
+
+#### Symfony
+It is recommended to use the [Symfony bundle](https://github.com/GemberPHP/event-sourcing-symfony-bundle) to configure Gember Event Sourcing.
+With this bundle, the UUID adapter is automatically set as the default for Identity Generator.
+
+If you're not using the bundle, you can bind it directly to the `IdentityGenerator` interface.
+
+```yaml
+# Bind ULID Identity Generator to interface
+Gember\EventSourcing\Util\Generator\Identity\IdentityGenerator:
+  class: Gember\IdentityGeneratorSymfony\Ulid\SymfonyUlidIdentityGenerator
+  arguments:
+    - '@ Symfony\Component\Uid\Factory\UlidFactory'
+
+# OR bind UUID (v4) Identity Generator to interface
+Gember\EventSourcing\Util\Generator\Identity\IdentityGenerator:
+  class: Gember\IdentityGeneratorSymfony\Uuid\SymfonyUuidIdentityGenerator
+  arguments:
+    - '@ Symfony\Component\Uid\Factory\UuidFactory'
+```

composer.json

@@ -1,6 +1,6 @@
 {
     "name": "gember/identity-generator-symfony",
-    "description": "Gember Identity generator (gember/event-sourcing) implementation based on symfony/uid",
+    "description": "Gember Event Sourcing Identity Generator adapter based on symfony/uid",
     "license": "MIT",
     "type": "library",
     "keywords": [