Fix error reporting

Wrong error variable was used in data-channels-create example.

README.md

@@ -101,6 +101,7 @@ Check out the **[contributing wiki](https://github.com/pions/webrtc/wiki/Contrib
 * [Alex Browne](https://github.com/albrow) - *JavaScript/Wasm bindings*
 * [adwpc](https://github.com/adwpc) - *SFU example with websocket*
 * [imalic3](https://github.com/imalic3) - *SFU websocket example with datachannel broadcast*
+* [Žiga Željko](https://github.com/zigazeljko)
 
 ### License
 MIT License - see [LICENSE](LICENSE) for full text

examples/data-channels-create/main.go

@@ -50,7 +50,7 @@ func main() {
 			// Send the message as text
 			sendErr := dataChannel.SendText(message)
 			if sendErr != nil {
-				panic(err)
+				panic(sendErr)
 			}
 		}
 	})