Docs - product feedback: fugit should be mentioned as the cron parser on the "Schedule a new pipeline" page

Currently, the CI/CD -> Schedules -> New schedule -> "Schedule a new pipeline" page only provides a link to cron's Wikipedia page for referencing syntax. I would have liked to have known sooner that I could use fugit's extensions like modulo operators on weekdays. I only discovered this by happening to stumble across the fact that gitlab uses fugit as its parser in the EE docs. This should be discoverable within the scheduling UI itself.

Proposal

From @marcel.amirault: We should update the Cron syntax link in the UI to instead be a Learn more. link that points to https://docs.gitlab.com/ee/topics/cron/. See the screenshot below: