Update README.md

Author: joreilly

README.md

@@ -1,6 +1,6 @@
 # PeopleInSpace
 
-![kotlin-version](https://img.shields.io/badge/kotlin-2.0.0-blue?logo=kotlin)
+![kotlin-version](https://img.shields.io/badge/kotlin-2.1.0-blue?logo=kotlin)
 
 
 **Kotlin Multiplatform** project with SwiftUI, Jetpack Compose, Compose for Wear OS, Compose for Desktop and Compose for Web clients along with Ktor backend. Currently running on