Update examples SHT3x

Author: khoih-prog

examples/ESP32_GSM_SHT3x/ESP32_GSM_SHT3x.ino

@@ -145,6 +145,8 @@ void setup()
   SerialMon.print(F("\nStart ESP32-WIFI-GSM_SHT3x using "));
   SerialMon.println(CurrentFileFS);
 
+  Sensor.Begin();
+
   // Set-up modem reset, enable, power pins
   pinMode(MODEM_PWKEY, OUTPUT);
   pinMode(MODEM_RST, OUTPUT);

examples/ESP8266_GSM_SHT3x/ESP8266_GSM_SHT3x.ino

@@ -144,6 +144,8 @@ void setup()
 
   SerialMon.print(F("\nStart ESP8266-WIFI-GSM_SHT3x using "));
   SerialMon.println(CurrentFileFS);
+
+  Sensor.Begin();
 
   // Set-up modem reset, enable, power pins
   pinMode(MODEM_PWKEY, OUTPUT);