fix: typo

Author: yajra

README.md

@@ -15,7 +15,7 @@
 Laravel package for handling [server-side](https://www.datatables.net/manual/server-side) works of [DataTables](http://datatables.net) jQuery Plugin via [AJAX option](https://datatables.net/reference/option/ajax) by using Eloquent ORM, Fluent Query Builder or Collection.
 
 ```php
-use \Yajra\DataTables\Facades\DataTables;
+use Yajra\DataTables\Facades\DataTables;
 
 return DataTables::eloquent(User::query())->toJson();
 return DataTables::query(DB::table('users'))->toJson();