Rune vs Rust

[felipetesc]

I'm reading the Rune Book right now, and I'm wondering what are the main differences to Rust. As a suggestion, it would be nice to have a small chapter with contents allowing us to discern Rune from Rust.
For example:

In Rune we do this:

pub fn say_hello(name) {
println!("{}", name);
}
and in Rust this:

pub fn say_hello(name : String){
println!("{}", name);
}

Nice work creating Rune!