Update readme.md

Author: tshafer

readme.md

@@ -3,7 +3,7 @@
 This package provides a IronMQ (~4.0 SDK) driver for the Laravel queue system and matches the driver that was found in Laravel 5.1.
 
 ## Installation
-
+- composer require laravelcollective/iron-queue
 - Add `Collective\IronQueue\IronQueueServiceProvider::class` to your `app.php` configuration file.
 - Configure your `iron` queue driver in your `config/queue.php` the same as it would have been configured for Laravel 5.1.