Readme: Scala 3 badge

Author: horothesun

README.md

@@ -1,7 +1,7 @@
 # Simple Scala-CLI template
 
 [![CI](https://github.com/horothesun/simple-scala-cli.g8/actions/workflows/ci.yml/badge.svg)](https://github.com/horothesun/simple-scala-cli.g8/actions/workflows/ci.yml)
-[![Scala](https://img.shields.io/badge/Scala-2.13-%23DC322F?style=flat&labelColor=%23383838&logo=Scala&logoColor=%23DC322F&logoWidth=12&cacheSeconds=3600)](https://www.scala-lang.org/)
+[![Scala](https://img.shields.io/badge/Scala-3-%23DC322F?style=flat&labelColor=%23383838&logo=Scala&logoColor=%23DC322F&logoWidth=12&cacheSeconds=3600)](https://www.scala-lang.org/)
 [![CE3](https://img.shields.io/badge/Cats%20Effect-3-%23DC322F?style=flat&labelColor=%23383838&logo=Scala&logoColor=%23DC322F&logoWidth=12&cacheSeconds=3600)](https://typelevel.org/cats-effect/)
 
 Giter8 template to generate a simple Scala-CLI project.