Commented the code

prosjekt.X/voltage.c

@@ -57,6 +57,7 @@ uint16_t internal_voltage_read() {
     return adc_val*10;
 }
 
+/* Takes inn a messured value and converts it to voltage */
 uint16_t convert_to_voltage(uint16_t adc_val){
     uint16_t min_in= 0;
     uint16_t min_out= 0;