Calendar month - broken link in docs

[mcoker]

This link is hard coded to /v4 - should probably be a relative link instead?

patternfly-react/packages/react-core/src/components/CalendarMonth/examples/CalendarMonth.md

Line 20 in 8152e85

For this example, these dates are static and cannot be updated. For an interactive demo, see our [Date picker demos](https://www.patternfly.org/v4/components/date-picker/react-demos).

Can be updated with #9998

[thatblindgeye]

Closed by #10089