Update turnserver.conf

fixed typo mor --> more

examples/etc/turnserver.conf

@@ -192,7 +192,7 @@
 #
 # You can simply run the turnserver and access the port 9641 and path /metrics
 #
-# For mor info on the prometheus exporter and metrics
+# For more info on the prometheus exporter and metrics
 # https://prometheus.io/docs/introduction/overview/
 # https://prometheus.io/docs/concepts/data_model/
 #