Output from `nextSteps` should be in `README.md`

[sacrosanctic]

We might as well redo the whole readme.

[jycouet]

Maybe some part, but maybe not all?!
Maybe another hook?

[manuel3108]

In what form would that be useful? Why cant you just scroll up in the terminal? If you are working in a team, you should rewrite the readme either way.

[sacrosanctic]

Terminal is ephemeral, I often clear it or close it, resorting to rerunning the command to see it. The "next steps" we print in the terminal is essentially the same info for a "getting started" section. Giving the user a template to start editing in a team environment.

We are otherwise left with https://github.com/sveltejs/cli/blob/main/packages/sv/src/create/shared/README.md. Leaves a lot to be desired.