Docs: Update usage in readme

README.md

@@ -32,11 +32,10 @@ return ECSConfig::configure()
     );
 
     // Be default only checks compatible with PHP 8.0 are enabled.
-    // Depending on the lowest PHP version your project need to support, you can enable additional checks for
-    // PHP 8.1, 8.2 and 8.3.
+    // Depending on the lowest PHP version your project needs to support, you can enable additional checks.
 
-
-    // Import one of ecs-8.1.php, ecs-8.2.php or ecs-8.3.php. Use only one file (for the highest possible PHP version).
+    // Import one of ecs-8.1.php, ecs-8.2.php or ecs-8.3.php. Use only one additional file (for the highest possible
+    // PHP version), the configs for previous versions are automatically included.
     //->withSets(
     //    [
     //        __DIR__ . '/vendor/lmc/coding-standard/ecs.php',