Update README.md

Author: swhitty

README.md

@@ -1,6 +1,7 @@
-[![](https://img.shields.io/endpoint?url=https%3A%2F%2Fswiftpackageindex.com%2Fapi%2Fpackages%2Fswhitty%2FSwiftDraw%2Fbadge%3Ftype%3Dswift-versions)](https://swiftpackageindex.com/swhitty/SwiftDraw)
-[![](https://img.shields.io/endpoint?url=https%3A%2F%2Fswiftpackageindex.com%2Fapi%2Fpackages%2Fswhitty%2FSwiftDraw%2Fbadge%3Ftype%3Dplatforms)](https://swiftpackageindex.com/swhitty/SwiftDraw)
-[![CodeCov](https://codecov.io/gh/swhitty/SwiftDraw/branch/master/graphs/badge.svg)](https://codecov.io/gh/swhitty/SwiftDraw/branch/master)
+[![Build](https://github.com/swhitty/SwiftDraw/actions/workflows/build.yml/badge.svg)](https://github.com/swhitty/SwiftDraw/actions/workflows/build.yml)
+[![CodeCov](https://codecov.io/gh/swhitty/SwiftDraw/graphs/badge.svg)](https://codecov.io/gh/swhitty/SwiftDraw)
+[![Platforms](https://img.shields.io/badge/platforms-iOS%20|%20Mac%20|%20Linux-lightgray.svg)](https://github.com/swhitty/SwiftDraw/blob/main/Package.swift)
+[![Swift 5.4](https://img.shields.io/badge/swift-5.4-red.svg?style=flat)](https://developer.apple.com/swift)
 [![License](https://img.shields.io/badge/license-zlib-lightgrey.svg)](https://opensource.org/licenses/Zlib)
 [![Twitter](https://img.shields.io/badge/[email protected])](http://twitter.com/simonwhitty)