How to use DHT11

#include <DHT.h>
DHT sensor (13, DHT11);
void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
}
float temp;
float humi;
void loop() {
  // put your main code here, to run repeatedly:
  temp = sensor.readTemperature();
  humi = sensor.readHumidity();
  Serial.print(temp);
  Serial.print(" Celcius, ");
  Serial.print(humi);
  Serial.print("% Humidity\n");
  delay(1560);
  Serial.println("-----------------");
}