Add adserver banner links to README header (#80)

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

Author: czerwiukk

README.md

@@ -1,3 +1,7 @@
+[![Ad](https://swm-delivery.com/www/images/zone-gh-fishjam-1?n=2)](https://swm-delivery.com/www/delivery/ck.php?zoneid=zone-gh-fishjam-1&n=2)
+[![Ad](https://swm-delivery.com/www/images/zone-gh-fishjam-2?n=2)](https://swm-delivery.com/www/delivery/ck.php?zoneid=zone-gh-fishjam-2&n=2)
+[![Ad](https://swm-delivery.com/www/images/zone-gh-fishjam-3?n=2)](https://swm-delivery.com/www/delivery/ck.php?zoneid=zone-gh-fishjam-3&n=2)
+
 [<img src="https://avatars.githubusercontent.com/u/42463376" alt="React Native WebRTC" style="height: 6em;" />](https://github.com/react-native-webrtc/react-native-webrtc)
 
 # React-Native-WebRTC