Add a note about how to get access to the WebSocket client

Author: HavokInspiration

README.md

@@ -87,6 +87,11 @@ class RoboFile extends Tasks
 
     public function someTask()
     {
+        $this
+            ->taskLiveReload()
+            ->run();
+            
+        // Further down...
         $this
             ->taskLiveReload()
             ->sendReloadMessage();
@@ -97,6 +102,31 @@ class RoboFile extends Tasks
 This will send a "reload" message to the Live Reload server. If you load the `livereload.js` file created by the task, your browser will automatically reload when this message is received.  
 Typically, you will use this method when using a "watch" behavior so a reload can be triggered after your watch handler has been executed.
 
+If you want to send another message to extend the behavior of the Live Reload server, you can have access to the WebSocket client using the `getWsClient()` method and send the message you want :
+
+```php
+use Elephfront\RoboLiveReload\Task\Loader\LoadLiveReloadTaskTrait;
+
+class RoboFile extends Tasks
+{
+
+    use LoadLiveReloadTaskTrait;
+    
+    public function someTask()
+    {
+        $this
+            ->taskLiveReload()
+            ->run();
+            
+        // Further down...
+        $this
+            ->taskLiveReload()
+            ->getWsClient()
+            ->send('your-message');
+    }
+}
+```
+
 ## Contributing
 
 If you find a bug or would like to ask for a feature, please use the [GitHub issue tracker](https://github.com/Elephfront/robo-live-reload/issues).