Not updated with changes to tutorial

[NiyogRay]

Hi Lee,

There are updates to this article:
https://appcodelabs.com/create-ibdesignable-gradient-view-swift

that are not yet in the code. Like this one:

    override var frame: CGRect {
        didSet {
            updateGradient()
        }
    }

    override func layoutSubviews() {
        super.layoutSubviews()
        // this is crucial when constraints are used in superviews
        updateGradient()
    }

Could you please update the code in repo to match the article? Thanks.