Generate documentation

[Razaloc]

The project needs documentation.
There are recommendations and standards for Rust crates documentation:

• The rustdoc book
• The Rust Programming Language

[Razaloc]

Found out there is a man crate to allow the CLI application to have a man page. Wonder if we want to have one.

[obbardc]

Found out there is a man crate to allow the CLI application to have a man page. Wonder if we want to have one.

Yes, that'd be great to have when we distribute as a Debian package. Can you check what other binary Rust Debian packages do ?