add support for Laravel 5.5 auto discovery

Author: coolcodemy

README.md

@@ -17,12 +17,14 @@ $ composer require runcloudio/flysystem-b2
 ## Usage with Laravel
 
 
-In your app.php config file add to the list of service providers:
+If you are using **Laravel 5.4 and below**, add this line to app.php inside list of Service Providers.:
 ```
 \RunCloudIO\FlysystemB2\BackblazeServiceProvider::class,
 ```
 
-Add the following to your filesystems.php config file in the ```disks``` section:
+Starting from Laravel 5.5, they implements **Package Auto Discovery**, so you don't have to add the service provider.
+
+Doesn't matter which Laravel version you are using, add the following to your filesystems.php config file in the ```disks``` section:
 ```
 'b2' => [
     'driver'         => 'b2',

composer.json

@@ -45,5 +45,12 @@
     },
     "config": {
         "sort-packages": true
-    }
+    },
+    "extra": {
+        "laravel": {
+            "providers": [
+                "RunCloudIO\\FlysystemB2\\BackblazeServiceProvider"
+            ]
+        }
+    },
 }