Provide more details in the README

Author: Vectorial1024

README.md

@@ -4,7 +4,7 @@ Utilize Laravel Processes to run PHP code asynchronously.
 ## What really is this?
 [Laravel Processes](https://laravel.com/docs/10.x/processes) was first introduced in Laravel 10. This library wraps around `Process::start()` to let you execute code in the background to achieve async, albeit with some caveats:
 - You may only execute PHP code
-- Restrictions from SC apply (see)
+- Restrictions from `laravel/serializable-closure` apply (see (their README)[https://github.com/laravel/serializable-closure])
 - Silent execution: no built-in result-checking, check the results yourself (e.g. via database)
 
 ## Installation
@@ -14,7 +14,25 @@ Utilize Laravel Processes to run PHP code asynchronously.
 Please see `CHANGELOG.md`.
 
 ## Example code
-(WIP)
+Tasks can be defined as PHP closures, or (recommended) as an instance of a class that implements `AsyncTaskInterface`.
+
+A very simple example task to write Hello World to a file:
+
+```php
+// define the task...
+$target = "document.txt";
+$task = new AsyncTask(function () use ($target) {
+    $fp = fopen($target, "w");
+    fwrite($fp, "Hello World!!");
+    fflush($fp);
+    fclose($fp);
+});
+
+// then start it.
+$task->start();
+
+// the task is now run in another PHP process, and will not report back to this PHP process.
+```
 
 ## Testing
 PHPUnit via Composer script: