Express generator page in 5.x

[krzysdz]

On the new website guides are versioned including the "Express generator". express-generator does not have a 5.x version, so including it in 5.x docs is a bit misleading.

I don't think that there are any plans to to revive express-generator. There's been conversation about new Express CLI, rewriting the generator from scratch or creating create-express, but I don't think anyone had time to do it (except for the bare-bones bjohansebas/create-express). My information about this is based on expressjs/discussions#197 and recording of an old TC meeting (starting at about 23:30).

Since there probably will not be a 5.x soon, should we remove the page and mentions about generator? Maybe add a warning that it can't create Express 5 applications?

[bjohansebas]

I definitely plan to finish it. My goal is to make Express easy to use, and having the generator helps a lot with that

[krzysdz]

I don't doubt that the generator is useful, but since we have separate docs for 4.x and 5.x and both include the generator, it can mislead people that the generator can be used with Express 5.

[bjohansebas]

Okay, although we should probably remove this page and move some of its content to the installation page