add sonarcloud badges

README.md

@@ -4,6 +4,11 @@ Self-Update library for Github, Gitea and Gitlab hosted applications in Go
 [![Godoc reference](https://godoc.org/github.com/creativeprojects/go-selfupdate?status.svg)](http://godoc.org/github.com/creativeprojects/go-selfupdate)
 [![Build](https://github.com/creativeprojects/go-selfupdate/workflows/Build/badge.svg)](https://github.com/creativeprojects/go-selfupdate/actions)
 [![codecov](https://codecov.io/gh/creativeprojects/go-selfupdate/branch/main/graph/badge.svg?token=3FejM0fkw2)](https://codecov.io/gh/creativeprojects/go-selfupdate)
+[![Bugs](https://sonarcloud.io/api/project_badges/measure?project=creativeprojects_go-selfupdate&metric=bugs)](https://sonarcloud.io/summary/new_code?id=creativeprojects_go-selfupdate)
+[![Reliability Rating](https://sonarcloud.io/api/project_badges/measure?project=creativeprojects_go-selfupdate&metric=reliability_rating)](https://sonarcloud.io/summary/new_code?id=creativeprojects_go-selfupdate)
+[![Maintainability Rating](https://sonarcloud.io/api/project_badges/measure?project=creativeprojects_go-selfupdate&metric=sqale_rating)](https://sonarcloud.io/summary/new_code?id=creativeprojects_go-selfupdate)
+[![Security Rating](https://sonarcloud.io/api/project_badges/measure?project=creativeprojects_go-selfupdate&metric=security_rating)](https://sonarcloud.io/summary/new_code?id=creativeprojects_go-selfupdate)
+[![Vulnerabilities](https://sonarcloud.io/api/project_badges/measure?project=creativeprojects_go-selfupdate&metric=vulnerabilities)](https://sonarcloud.io/summary/new_code?id=creativeprojects_go-selfupdate)
 
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 * [Self\-Update library for Github, Gitea and Gitlab hosted applications in Go](#self-update-library-for-github-gitea-and-gitlab-hosted-applications-in-go)