DHT 11 values

Need Help With My Project
1

I have a DHT 11 and it is working fine, but in blynk it show just the values, someone knows how tom make it show the symbols (e. g. show humidity 60% instead of only showing 60)

this is my code

include
include
include
include
include
define dht_dpin A1
dht DHT;
SimpleTimer timer;
int luz = analogRead(5);

char auth[] = "b887f630c41c467d9a46f8d3a244a5c9";

void setup()
{
Blynk.begin(auth);
Serial.begin(9600);
}

void loop(){
if (DHT.humidity > 95){
Blynk.notify("Alto risco de chuva");
}
Blynk.run();
int chk = DHT.read11(dht_dpin);
Blynk.virtualWrite(1, DHT.temperature); 
Blynk.virtualWrite(2, DHT.humidity); 
delay(1000);

luz = map(luz, 0, 1023, 0, 100);
}
2 
float t = 13.7;
char buf[5];
dtostrf(t, 3, 1, buf);
Blynk.virtualWrite(V5, String(buf) + "℃");
3

In my code I don’t use float so it didnt worked

4

So it even simple.

String(int) + "℃"
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