Quark 0.4.0a

Addition of operator overrides,

struct Slice<T> {
    Operator::index(self, usize size) { /* ... */ }
}

[i32] x = [1, 2, 3];
i32 first = x[0];

What's Changed

• Add Screenshot to README by @ephf in #48
• Operator Overrides and Structure References by @ephf in #49
• 0.4.0a (untested) by @ephf in #50

Full Changelog: 0.3.2...0.4.0a