Bump badge version in README

Note: replace stable + latest with release branch (only latest version)

README.md

@@ -6,9 +6,8 @@ _Do you want to share the links you discover?_
 _Shaarli is a minimalist link sharing service that you can install on your own server._
 _It is designed to be personal (single-user), fast and handy._
 
-[![](https://img.shields.io/badge/stable-v0.11.1-blue.svg)](https://github.com/shaarli/Shaarli/releases/tag/v0.11.1)
-[![](https://img.shields.io/badge/latest-v0.12.2-blue.svg)](https://github.com/shaarli/Shaarli/releases/tag/v0.12.2)
-[![](https://img.shields.io/badge/master-v0.12.x-blue.svg)](https://github.com/shaarli/Shaarli)
+[![](https://img.shields.io/badge/release-v0.13.0-blue.svg)](https://github.com/shaarli/Shaarli/releases/tag/v0.13.0)
+[![](https://img.shields.io/badge/master-v0.13.x-blue.svg)](https://github.com/shaarli/Shaarli)
 [![](https://github.com/shaarli/Shaarli/actions/workflows/ci.yml/badge.svg)](https://github.com/shaarli/Shaarli/actions)
 [![Join the chat at https://gitter.im/shaarli/Shaarli](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/shaarli/Shaarli)
 [![Docker repository](https://img.shields.io/docker/pulls/shaarli/shaarli.svg)](https://github.com/shaarli/Shaarli/pkgs/container/shaarli)