Upd readme

Author: cursedcoder

README.md

@@ -8,3 +8,43 @@ Use at your own risk.
 Check out examples in `examples/` dir.
 
 No tests – no problems.
+
+Example explain features
+========================
+
+```php
+use EProcess\Worker;
+
+class Data
+{
+  // jms serializer metadata
+  private $id;
+  // setters getters etc.
+}
+
+class Main // like that one in c++
+{
+    public function run()
+    {
+        $worker = $this->createWorker(MyWorker::class); // create external non-blocking thread of MyWorker class
+        $worker->event('any_event', 'Hello my worker!');
+        $worker->on('hello_master', function() {
+            // Receive back-call from child
+        });
+    }
+}
+
+class MyWorker extends Worker
+{
+    public function run()
+    {
+        $this->on('any_event', function($data) {
+            echo 'Got any_event event from my master: ' . $data; // data == Hello my worker
+            // Still we can send any event back to master
+            $this->event('hello_master');
+        });
+    }
+}
+```
+
+You need to have proper autoloading established in order to use this example.