updated config file path

Author: diegofelix

README.md

@@ -104,7 +104,7 @@ $books = $user->books()->sortBy('title');
 Configuration
 -------------
 
-Change your default database connection name in `app/config/database.php`:
+Change your default database connection name in `config/database.php`:
 
 ```php
 'default' => env('DB_CONNECTION', 'mongodb'),
@@ -179,7 +179,7 @@ Everything else (should) work just like the original Eloquent model. Read more a
 
 ### Optional: Alias
 
-You may also register an alias for the MongoDB model by adding the following to the alias array in `app/config/app.php`:
+You may also register an alias for the MongoDB model by adding the following to the alias array in `config/app.php`:
 
 ```php
 'Moloquent'       => 'Jenssegers\Mongodb\Eloquent\Model',