Update README.md

Author: SensorsIot

README.md

@@ -2,3 +2,7 @@
  NTP time example for ESP8266 and ESP32 based on standard functionality
 
  See video: https://youtu.be/r2UAmBLBBRM
+ 
+ Correction: The time() function only calls the NTP server every hour. So there is no need for the function
+ getTimeReducedTraffic(). The function getNTPtime() does more or less the same...
+ Thank you, Jose Baars for your testing!