fix logo link

Author: corsicanec82

README.md

@@ -33,6 +33,6 @@ map(fn($node) => array_merge($node, ['name' => strtoupper(getName($node))]), $tr
 // ]
 ```
 
-[![Hexlet Ltd. logo](https://raw.githubusercontent.com/Hexlet/hexletguides.github.io/master/images/hexlet_logo128.png)](https://ru.hexlet.io/pages/about?utm_source=github&utm_medium=link&utm_campaign=php-eloquent-blog)
+[![Hexlet Ltd. logo](https://raw.githubusercontent.com/Hexlet/assets/master/images/hexlet_logo128.png)](https://ru.hexlet.io/pages/about?utm_source=github&utm_medium=link&utm_campaign=php-eloquent-blog)
 
 This repository is created and maintained by the team and the community of Hexlet, an educational project. [Read more about Hexlet (in Russian)](https://ru.hexlet.io/pages/about?utm_source=github&utm_medium=link&utm_campaign=php-eloquent-blog).