Add example of initializing an array without literal

There was no example on how to initialize an array except for using a literal. For large arrays, initialization using a literal is not really an option.

I found the array syntax on the site, but this was the piece of information that I missed. I think it might be useful for other people as well.
Yes, it can be inferred, but then there would be no example of the actual type. What about adding an extra line where the type is inferred?

    // The compiler can infer the type
    let zs = [1i, 2, 3, 4, 5];