Tutorial explaining features when you first install NewPipe like SkyTube

[tiwarys]

Checklist

• I checked, but didn't find any duplicates (open OR closed) of this issue in the repo.
• I have read the contribution guidelines given at https://github.com/TeamNewPipe/NewPipe/blob/HEAD/.github/CONTRIBUTING.md.
• This issue contains only one feature request. I will open one issue for every feature I want to request.

Describe the feature you want

I need a small tutorial which explains that if swipe up/down we can control brightness and volume and also if we double click in middle it pauses the video.

Additional context

SkyTube app does this as I requested.

Video of SkyTube app tutorial

SkyTube.Tutorial.mp4

How will you/everyone benefit from this feature?

This is generally useful for first time users who are naive and don't like tinkering all the options available on NewPipe.

[c-shubh]

Like these #859?

[tiwarys]

Yes it's similar issue.