update readme

Author: songzou

README.md

@@ -5,34 +5,11 @@ laravel-admin-ext/helpers
 [![Packagist](https://img.shields.io/packagist/l/laravel-admin-ext/helpers.svg?maxAge=2592000)](https://packagist.org/packages/laravel-admin-ext/helpers)
 [![Total Downloads](https://img.shields.io/packagist/dt/laravel-admin-ext/helpers.svg?style=flat-square)](https://packagist.org/packages/laravel-admin-ext/helpers)
 
-[Demo](http://120.26.143.106/admin) use `username/password:admin/admin`
-
 ## Installation
 
 ```
 $ composer require laravel-admin-ext/helpers
-```
-
-Open `app/Providers/AppServiceProvider.php`, and call the `Helpers::boot` method within the `boot` method:
-
-```php
-<?php
-
-namespace App\Providers;
 
-use Encore\Admin\Helpers\Helpers;
-use Illuminate\Support\ServiceProvider;
-
-class AppServiceProvider extends ServiceProvider
-{
-    public function boot()
-    {
-        Helpers::boot();
-    }
-}
-```
-
-```
 $ php artisan admin:import helpers
 ```
 

src/HelpersServiceProvider.php

@@ -12,5 +12,7 @@ class HelpersServiceProvider extends ServiceProvider
     public function boot()
     {
         $this->loadViewsFrom(__DIR__.'/../resources/views', 'laravel-admin-helpers');
+
+        Helpers::boot();
     }
 }