doc: add config example

README.md

@@ -13,4 +13,22 @@ Installation & usage
     $ composer require --dev antiseptikk/dev-kit
     ```
 
-2. Include a configuration file in your `ecs.php`
+2. Create a file named `ecs.php` in the root directory of your project.
+
+   ```php
+   <?php
+
+   declare(strict_types=1);
+   
+   use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
+   use Symplify\EasyCodingStandard\ValueObject\Option;
+   
+   return static function (ContainerConfigurator $containerConfigurator): void
+   {
+       $containerConfigurator->import(__DIR__.'/vendor/antiseptikk/dev-kit/ecs.php');
+   
+       $parameters = $containerConfigurator->parameters();
+       $parameters->set(Option::LINE_ENDING, "\n");
+   };
+
+   ```

ecs.php

@@ -125,7 +125,6 @@
 use SlevomatCodingStandard\Sniffs\Commenting\InlineDocCommentDeclarationSniff;
 use SlevomatCodingStandard\Sniffs\Commenting\RequireOneLinePropertyDocCommentSniff;
 use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
-use function Symfony\Component\DependencyInjection\Loader\Configurator\ref;
 
 return static function (ContainerConfigurator $containerConfigurator): void {
     $services = $containerConfigurator->services();