https://www.swift.org/swiftly/documentation/swiftly/install-toolchains/
Installing a swift toolchain using swiftly involves downloading it securely and extracting it into a well-known location in your account. This guides you through the different ways you can install a swift toolchain. Follow the Getting Started guide to install swiftly.
https://www.swift.org/swiftly/documentation/swiftly/install-toolchains/getting-started.md goes to a 404 page
https://www.swift.org/swiftly/documentation/swiftly/install-toolchains/
https://www.swift.org/swiftly/documentation/swiftly/install-toolchains/getting-started.md goes to a 404 page