Corrected User Association in Readme (#22)

Author: surtic86

README.md

@@ -258,15 +258,15 @@ class ProductReviewMail extends Mailable
     {
         // Call associateWith() and the package automatically associates the public
         // properties with this mailable.
-        $this->associateWith($this->product);
+        $this->associateWith($this->user);
         $this->associateWith([$this->product]);
 
         // Or – if you want more control – use the getMailModelsHeader() method
         // to get a Header instance and merge it with your own headers.
         return new Headers(
             text: [
                 'X-Custom-Header' => 'Custom Value',
-                ...$this->getMailModelsHeader($this->product)->toArray(),
+                ...$this->getMailModelsHeader($this->user)->toArray(),
                 ...$this->getMailModelsHeader([$this->product])->toArray(),
             ],
         );