Update README.md

README.md

@@ -62,9 +62,9 @@ For the redis configuration, add a new connection in config/database.php
 ```php
 'redis' => [
     'centrifuge' => [
-        'host' => 'localhost',
-        'password' => null,
-        'port' => 6379,
+        'host' => env('REDIS_HOST', '127.0.0.1'),,
+        'password' => env('REDIS_PASSWORD', null),
+        'port' =>  env('REDIS_PORT', 6379),
         'database' => 0,
     ],
     // ...