Add documentation for <Dropdown> 's extraStyles prop

[sahariko]

The current documentation for extraStyles is not entirely clear on how to use it properly.

Seeing as this prop is a proxy for react-select's styles prop, we can simply add an external link for now.

[Muskan777]

Hi @sahariko . I'd like to take this up

[sahariko]

Hi @Muskan777, thanks for stepping up!

You can start by reading our contribution guidelines.

To edit a component's prop description you can change the comment right above it in propTypes, and you should see the change reflected in Storybook.

[Muskan777]

Hi @sahariko I've opened a PR please have a look

[Aady7]

Would like to work on the issue is it still open.

[SergeyRoyt]

Hey @Aady7 !
If there is any progress with the task - please, update me, cause Hacktoberfest is about to finish