chore: 0.20.4 release preperations

CHANGELOG.md

@@ -7,6 +7,17 @@ to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 All releases can be found on https://code.vikunja.io/api/releases.
 
+## [0.20.4] - 2023-03-12
+
+### Bug Fixes
+
+* *(docker)* Allow non-unique group id
+
+### Documentation
+
+* Add link to tutorial for installing Vikunja on Synology ([4de0efe](4de0efec1dd7da95dbf936728d7e23791396a63a))
+
+
 ## [0.20.3] - 2023-03-10
 
 ### Bug Fixes

README.md

@@ -2,7 +2,7 @@
 
 [![Build Status](https://drone.kolaente.de/api/badges/vikunja/api/status.svg)](https://drone.kolaente.de/vikunja/api)
 [![License: AGPL v3](https://img.shields.io/badge/License-AGPL%20v3-blue.svg)](LICENSE)
-[![Download](https://img.shields.io/badge/download-v0.20.3-brightgreen.svg)](https://dl.vikunja.io)
+[![Download](https://img.shields.io/badge/download-v0.20.4-brightgreen.svg)](https://dl.vikunja.io)
 [![Docker Pulls](https://img.shields.io/docker/pulls/vikunja/api.svg)](https://hub.docker.com/r/vikunja/api/)
 [![Swagger Docs](https://img.shields.io/badge/swagger-docs-brightgreen.svg)](https://try.vikunja.io/api/v1/docs)
 [![Go Report Card](https://goreportcard.com/badge/kolaente.dev/vikunja/api)](https://goreportcard.com/report/kolaente.dev/vikunja/api)