docs: Link to date format options documentation

[ScuroGuardiano]

PR Checklist

Please check if your PR fulfills the following requirements:

• [x] Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• [ ] Bugfix
• [ ] Feature
• [ ] Code style update (formatting, local variables)
• [ ] Refactoring (no functional changes, no api changes)
• [ ] Build related changes
• [ ] CI related changes
• [x] Documentation content changes
• [ ] Other... Please describe:

What is the current behavior?

There's no information about available values for date options nor where to find it. Here

What is the new behavior?

There is an information where to find available values for the date options.

Does this PR introduce a breaking change?

• [ ] Yes
• [x] No

Other information

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[shaharkazaz]

Thanks! nice addition 👍

[shaharkazaz]

@ScuroGuardiano Please fix the commit message, you can commit via npm run commit, see here for more information.