docs(calculation parameters): add rounding param

Added the `rounding` param to the list values
that can be modified for a CalculationParameters
object.

METHODS.md

@@ -13,16 +13,17 @@ params.adjustments.fajr = 2;
 
 | Property | Description |
 | --------- | ----------- |
-| method    | CalculationMethod name |
-| fajrAngle | Angle of the sun used to calculate Fajr |
-| maghribAngle | Angle of the sun used to calculate Maghrib (this is used by the Tehran method) |
-| ishaAngle | Angle of the sun used to calculate Isha |
-| ishaInterval | Minutes after Maghrib (if set, the time for Isha will be Maghrib plus ishaInterval) |
-| madhab | Value from the Madhab object, used to calculate Asr |
-| highLatitudeRule | Value from the HighLatitudeRule object, used to set a minimum time for Fajr and a max time for Isha |
-| adjustments | Object with custom prayer time adjustments (in minutes) for each prayer time |
-| polarCircleResolution | Value from the PolarCircleResolution object, strategy used to resolve undefined prayer times for areas located in polar circles  |
-| shafaq | Used by the MoonsightingCommittee method to determine how to calculate Isha. See explanation of values below. |
+| method    | CalculationMethod name. |
+| fajrAngle | Angle of the sun used to calculate Fajr. |
+| maghribAngle | Angle of the sun used to calculate Maghrib (this is used by the Tehran method). |
+| ishaAngle | Angle of the sun used to calculate Isha. |
+| ishaInterval | Minutes after Maghrib (if set, the time for Isha will be Maghrib plus ishaInterval). |
+| madhab | Value from the Madhab object, used to calculate Asr. `Shafi` is the default value. |
+| highLatitudeRule | Value from the HighLatitudeRule object, used to set a minimum time for Fajr and a max time for Isha. |
+| adjustments | Object with custom prayer time adjustments (in minutes) for each prayer time. |
+| rounding | The behavior for rounding prayer times. Either to nearest minute, to the higher minute, or none. `Nearest` is the default value. |
+| polarCircleResolution | Value from the PolarCircleResolution object, strategy used to resolve undefined prayer times for areas located in polar circles. `Unresolved` is the default value. |
+| shafaq | Used by the MoonsightingCommittee method to determine how to calculate Isha. See explanation of values below. `General` is the default value. |
 
 #### CalculationMethod