fix(pkg/logfile): description for exported functions

pkg/logfile/logfile.go

@@ -74,6 +74,8 @@ func ReadTemperatures(temperatureLogfile string) ([]*types.Temperature, error) {
 	return temperatures, nil
 }
 
+// ReadTemperaturesChannel reads temperatures from a channel until it is closed
+// and returns the temperature.
 func ReadTemperaturesChannel(temperatureChannel <-chan *types.Temperature) []*types.Temperature {
 	temperatures := make([]*types.Temperature, 0)
 	for {