🔥 Remove Duplexmedia because logo is missing

Author: mraerino

README.md

@@ -78,6 +78,4 @@ LGPLv3
 
 These people helped us bring Festify to life. Thank you!
 
-<a href="https://duplexmedia.com/"><img title="Duplexmedia" src="https://www.duplexmedia.com/uploads/images/logo.svg" width="400"></a>
-
 <a href="https://browserstack.com/"><img title="BrowserStack" src="https://festify.rocks/img/sponsors/browserstack.svg" width="400"></a>