Beginner-friendly docs

[Owez]

More needs to be added to give an introduction for a new user of torro, other than a still quite cryptic First Steps doc.

No time rush for this, just before first public version

[Owez]

Prehaps something like this for the barebones README.md usage subheading:

---

Usage

use std::path::PathBuf;
use torro::torrent::Torrent;

fn main() {
    let file_path = PathBuf::from("example.torrent");
    let my_torrent = Torrent::from_file(file_path).unwrap();

    // TODO: add more as becomes available
}

[Owez]

Could also make a mdbook-like thing or an extended top-level docs for displaying usages. Need a formalised note on how torrent::Torrent is the reccomended usage but all functions of torro can be done directly with parts like torro::bencode

[Owez]

Prehaps something like this for the barebones README.md usage subheading:

Usage

use std::path::PathBuf;
use torro::torrent::Torrent;

fn main() {
    let file_path = PathBuf::from("example.torrent");
    let my_torrent = Torrent::from_file(file_path).unwrap();

    // TODO: add more as becomes available
}

9dfe7d4d957d3194f3e481748bca77c6f32abeda Added a slightly modified version of this as an example of Torrent::new

[Owez]

Also removed "First Steps" from docs now, was outdated and useless