How to build static site using Publish

// swift-tools-version:5.1
// The swift-tools-version declares the minimum version of Swift required to build this package.
import PackageDescription

let package = Package(
    name: "PumaSwiftWeb",
    dependencies: [
        .package(url: "https://github.com/johnsundell/publish.git", from: "0.1.0")
    ],
    targets: [
        .target(
            name: "PumaSwiftWeb",
            dependencies: [
            	"Publish"
        	]
        )
    ]
)

import Publish
import Plot
import Ink
import Foundation

struct PumaSwiftWeb: Website {
    enum SectionID: String, WebsiteSectionID {
        case gettingStarted
        case workflow
        case tasks
        case about
    }

    struct ItemMetadata: WebsiteItemMetadata {}

    var url = URL(string: "https://pumaswift.github.io")!
    var name = "Puma Swift"
    var description = "Build utilities in pure Swift"
    var language: Language { .english }
    var imagePath: Path? { "https://avatars2.githubusercontent.com/u/54233247?s=200&v=4" }
}

try PumaSwiftWeb()
    .publish(withTheme: .foundation)