added functions to get two numbers by user

src/kgV/main.c

@@ -3,6 +3,10 @@
 #include <stdio.h>
 
 int main(){
+    printf("add two numbers:\n");
+    int firstNum = usergetd("first number: ", 0, NULL);
+    int secondNum = usergetd("second number: ", 0, NULL);
+
 
     return 0;
 }