Rendering doc chapter is confusing

[evanxg852000]

In the chapter: Rendering doc, this sample code exist use clap_generate::gen_manuals;
I can't seem to know wich clap_generate is as currently none contain I have found on crates.io or clap/clap_generate does not contain the gen_manuals.

[epage]

I remember we were talking about creating manpage generation but I don't remember where we landed on it.

This section was added in rust-cli/team#85 to resolve rust-cli/team#70. @spacekookie do you remember what you were coding against when writing this? I wonder if its something we can resurrect.

When looking into this, I did see reference to clap working with help2man which might be a good stopgap.

[epage]

The page now has a TODO and links out to the PR adding clap_man.