[Mailer][Notifier] Sweego is backing their bridges, thanks to them!

README.md

@@ -24,10 +24,24 @@ MAILER_DSN=sweego+api://API_KEY@default
 where:
  - `API_KEY` is your Sweego API Key
 
+Sponsor
+-------
+
+This bridge for Symfony 7.2 is [backed][1] by [Sweego][2] itself!
+
+Sweego is a European email and SMS sending platform for developers and product builders.
+Easily create, deliver, and monitor your emails and notifications.
+
+Help Symfony by [sponsoring][3] its development!
+
 Resources
 ---------
 
  * [Contributing](https://symfony.com/doc/current/contributing/index.html)
  * [Report issues](https://github.com/symfony/symfony/issues) and
    [send Pull Requests](https://github.com/symfony/symfony/pulls)
    in the [main Symfony repository](https://github.com/symfony/symfony)
+
+[1]: https://symfony.com/backers
+[2]: https://www.sweego.io/
+[3]: https://symfony.com/sponsor