docs: start page isn't correct

[mfranzke]

https://db-ui.github.io/elements/?path=/story/00-intro-welcome--page

[nmerget]

Where is the url from?

There are only --docs pages for most of the menu points. It shouldn't be a bug here, just a wrong link

[mfranzke]

Sorry, I thought that I've opened the general URL https://db-ui.github.io/elements/ and would have been redirect to this one.

[nmerget]

Ahh found it the links of the cards are wrong