docs: add branded banner (#1160)

* docs: add branded banner

* Update README.md

---------

Co-authored-by: Jakub Romańczyk <jakub.romanczyk@callstack.com>

Author: thymikee

README.md

@@ -1,7 +1,7 @@
-<div align="center">
-  <img src="./logo.png" width="650" alt="Re.Pack logo" />
-  <h3>A toolkit to build your React Native application with Rspack or Webpack.</h3>
-</div>
+<a href="https://www.callstack.com/open-source" align="center">
+  <img src="https://github.com/user-attachments/assets/de25944e-d91e-4a2c-bec9-8b0595bd1bbb" alt="Re.Pack" />
+  <h3 align="center">A toolkit to build your React Native application with Rspack or Webpack.</h3>
+</a>
 <div align="center">
 
 [![mit licence][license-badge]][license]