Fixed a typo in open function documentation

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Closes https://github.com/facebook/react-native/pull/13556

Differential Revision: D4908506

Pulled By: javache

fbshipit-source-id: 17f6a57e31e68dc79ac9b5303bf56461663d7edd

Libraries/Components/DatePickerAndroid/DatePickerAndroid.android.js

@@ -52,7 +52,7 @@ class DatePickerAndroid {
    *
    *   - `date` (`Date` object or timestamp in milliseconds) - date to show by default
    *   - `minDate` (`Date` or timestamp in milliseconds) - minimum date that can be selected
-   *   - `maxDate` (`Date` object or timestamp in milliseconds) - minimum date that can be selected
+   *   - `maxDate` (`Date` object or timestamp in milliseconds) - maximum date that can be selected
    *   - `mode` (`enum('calendar', 'spinner', 'default')`) - To set the date-picker mode to calendar/spinner/default
    *     - 'calendar': Show a date picker in calendar mode.
    *     - 'spinner': Show a date picker in spinner mode.