fix: make plugin work after composer require

Closes #23

Author: Steffen Giers

README.md

@@ -36,8 +36,6 @@ composer require gearsdigital/kirby-reporter
 git submodule add https://github.com/gearsdigital/kirby-reporter.git site/plugins/kirby-reporter
 ```
 
-> Hint: Don't forget to run composer install in `site/plugins/kirby-reporter` .
-
 ### Download
 
 [Download](https://github.com/gearsdigital/kirby-reporter/releases/latest) and copy this repository to `/site/plugins/kirby-reporter`.

index.php

@@ -1,5 +1,5 @@
 <?php
-require_once __DIR__.'/vendor/autoload.php';
+@include_once __DIR__.'/vendor/autoload.php';
 
 use Kirby\Cms\Blueprint;
 use KirbyReporter\Client\CreateClient;