Clearer step headings in youtube.mdx

[Kaszanas]

The steps are displayed without additional information in the sidebar:

I have added additional information to the headings.

[vercel[bot]]

@Kaszanas is attempting to deploy a commit to the Listinai Team on Vercel.

A member of the Team first needs to authorize it.

[jamesread]

Much nicer, thanks!

[Kaszanas]

@jamesread

Will make it even nicer later 😉

But my guess is we need to verify if these are the correct secrets.

I have images ready but I don't want to throw them into the repository just as binary files.

[jamesread]

@Kaszanas Throw the images in the repository as binary files, that's what images are :-)

[Kaszanas]

@Kaszanas Throw the images in the repository as binary files, that's what images are :-)

Yeah but in other instances you're using links to some GitHub hosting 🤔