Clarify readme

Author: josbeir

README.md

@@ -310,7 +310,7 @@ $update = JsonUpdate::create(
 $update = (new JsonUpdate('https://example.com/books/1'))
     ->data(['title' => 'New Book', 'price' => 29.99])
     ->private()
-    ->id('book-123')
+    ->id(Text::uuid())
     ->type('book.created')
     ->retry(5000)
     ->build();
@@ -356,7 +356,7 @@ $update = ViewUpdate::create(
 $update = (new ViewUpdate('https://example.com/notifications'))
     ->template('Notifications/item')
     ->viewVars(['notification' => $notification])
-    ->viewOptions(['plugin' => 'MyPlugin'])
+    ->viewOptions(['key' => 'value'])
     ->build();
 
 Publisher::publish($update);
@@ -1114,7 +1114,7 @@ $update = (new JsonUpdate('/books/1'))
     ->data(['title' => 'Book', 'price' => 29.99])
     ->jsonOptions(JSON_UNESCAPED_UNICODE)
     ->private()
-    ->id('book-123')
+    ->id(Text::uuid())
     ->type('book.updated')
     ->retry(5000)
     ->build();
@@ -1166,7 +1166,7 @@ $update = (new ViewUpdate('/notifications'))
     ->template('Notifications/item')
     ->viewVars(['notification' => $notification])
     ->layout('ajax')
-    ->viewOptions(['plugin' => 'MyPlugin'])
+    ->viewOptions(['key' => 'value'])
     ->private()
     ->id('notif-123')
     ->type('notification.new')
@@ -1281,6 +1281,7 @@ Contributions are welcome! Please follow these guidelines:
    ```bash
    composer cs-check    # Check code style
    composer stan        # Run PHPStan analysis
+   composer rector      # Run rectoring
    composer test        # Run tests
    ```