Add a description for clock_daysbeforemonth
Month starts from 0 to 11(Jan to Dec)
@@ -102,6 +102,7 @@ static const uint16_t g_daysbeforemonth[13] = {
*
* Description:
* Get the number of days that occurred before the beginning of the month.
+ * Month starts from 0 to 11(Jan to Dec).
*
****************************************************************************/
