Allow to get the corresponding CLI command

[loicmathieu]

Description
I'm using code.quarkus.io a lot these days to create demo projects and I find downloading / copying / extracting the project a bit cumbersome.
It would be great, when clicking on generate, to have the corresponding Quarkus CLI command (with of course a copy button) so we can just launch it and starts coding, this would be cool and save us a few steps before enjoying coding ;)