Remove old reference to L5, unsupported

Author: Holger Lösken

README.md

@@ -6,77 +6,21 @@
 [![StyleCI](https://styleci.io/repos/59506451/shield)](https://styleci.io/repos/59506451)
 [![License](https://poser.pugx.org/codedge/laravel-fpdf/license?format=flat-square)](https://packagist.org/packages/codedge/laravel-fpdf)
 
-This repository implements a simple [ServiceProvider](https://laravel.com/docs/master/providers)
-that creates a singleton instance of the Fpdf PDF library - easily accessible via a [Facade](https://laravel.com/docs/master/facades) in [Laravel](https://laravel.com/).  
-
-See [FPDF homepage](http://www.fpdf.org/) for more information about the usage.
+Using [FPDF](http://www.fpdf.org/) made easy with Laravel. See [FPDF homepage](http://www.fpdf.org/) for more information about the usage.
 
 ## Installation using [Composer](https://getcomposer.org/)
 ```sh
 $ composer require codedge/laravel-fpdf
 ```
 
-## Usage
-
-### Laravel >= 5.5
-Enjoy the auto discovery feature. 
-
-### Laravel <5.5
-To use the static interfaces (facades) you need to add the following lines to your `config/app.php`. The `[1]` is for
-registering the service provider, the `[2]` are for specifying the facades:
-
-```php
-// config/app.php
-
-return [
-
-    //...
-    
-    'providers' => [
-        // ...
-        
-        /*
-         * Application Service Providers...
-         */
-        // ...
-        Codedge\Fpdf\FpdfServiceProvider::class, // [1]
-    ],
-    
-    // ...
-    
-    'aliases' => [
-        // ...
-        'Fpdf' => Codedge\Fpdf\Facades\Fpdf::class, // [2]
-]
-```
-
-Now you can use the facades in your application. 
+## Configuration
 
-## Configuration (optional)
 Run   
 `php artisan vendor:publish --provider="Codedge\Fpdf\FpdfServiceProvider" --tag=config`  
 to publish the configuration file to `config/fpdf.php`.  
-  
-Open this file and enter the correct page settings, if you do not want the defaults.
 
-## Basic example
 
-If you want to use the facade you can see a basic example here:
-
-```php
-// app/Http/routes.php | app/routes/web.php
-
-Route::get('/', function () {
-
-    Fpdf::AddPage();
-    Fpdf::SetFont('Courier', 'B', 18);
-    Fpdf::Cell(50, 25, 'Hello World!');
-    Fpdf::Output();
-
-});
-```
-
-Of course you can also inject the singleton instance via dependency injection. See an example here:
+## Usage
 
 ```php
 // app/Http/routes.php | app/routes/web.php