docs(date-is): correct grammar

subjects/date-is/README.md

@@ -4,16 +4,16 @@
 
 Create the following functions:
 
-- `isValid`, this function must return false if it's an Invalid Date
-- `isAfter`, this function will receive two valid dates and return true if the first date is bigger then the second date
-- `isBefore`, this function will receive two valid dates and return true if the first date is lesser then the second date
-- `isFuture`, will return true if the date given as parameter is valid and higher than the present date
-- `isPast`, will return true if the date given as parameter is valid and less than the present date
+- `isValid`: accepts a `Date`, and returns `false` if the `Date` is invalid.
+- `isAfter`: accepts two `Date` arguments, and returns `true` if the first is greater then the second.
+- `isBefore`: accepts two `Date` arguments, and returns `true` if the second is greater than the first.
+- `isFuture`: accepts a `Date`, and returns `true` if the `Date` is valid, and is after than the present date.
+- `isPast`: accepts a `Date`, and returns `true` if the `Date` is valid, and is before the present date.
 
 ### Notions
 
-- [date-fns.org/v2.14.0/docs/isValid](https://date-fns.org/v2.14.0/docs/isValid)
-- [date-fns.org/v2.14.0/docs/isAfter](https://date-fns.org/v2.14.0/docs/isAfter)
-- [date-fns.org/v2.14.0/docs/isBefore](https://date-fns.org/v2.14.0/docs/isBefore)
-- [date-fns.org/v2.14.0/docs/isFuture](https://date-fns.org/v2.14.0/docs/isFuture)
-- [date-fns.org/v2.14.0/docs/isPast](https://date-fns.org/v2.14.0/docs/isPast)
+- [date-fns: isValid](https://date-fns.org/v2.14.0/docs/isValid)
+- [date-fns: isAfter](https://date-fns.org/v2.14.0/docs/isAfter)
+- [date-fns: isBefore](https://date-fns.org/v2.14.0/docs/isBefore)
+- [date-fns: isFuture](https://date-fns.org/v2.14.0/docs/isFuture)
+- [date-fns: isPast](https://date-fns.org/v2.14.0/docs/isPast)