Add badges

Author: flowtoolz

README.md

@@ -1,5 +1,7 @@
 # SwiftNodes
 
+[![](https://img.shields.io/endpoint?url=https%3A%2F%2Fswiftpackageindex.com%2Fapi%2Fpackages%2Fcodeface-io%2FSwiftNodes%2Fbadge%3Ftype%3Dswift-versions&style=flat-square)](https://swiftpackageindex.com/codeface-io/SwiftNodes) [![](https://img.shields.io/endpoint?url=https%3A%2F%2Fswiftpackageindex.com%2Fapi%2Fpackages%2Fcodeface-io%2FSwiftNodes%2Fbadge%3Ftype%3Dplatforms&style=flat-square)](https://swiftpackageindex.com/codeface-io/SwiftNodes) [![](https://img.shields.io/badge/License-MIT-lightgrey.svg?style=flat-square)](LICENSE)
+
 👩🏻‍🚀 *This project [is still a tad experimental](#development-status). Contributors and pioneers welcome!*
 
 ## What?