add drone build-badge to readme

README.md

@@ -1,4 +1,7 @@
-### info
+### Gitea
+[![Build Status](https://drone.fedy95.com/api/badges/infra/gitea/status.svg)](https://drone.fedy95.com/infra/gitea)
+
+### services
 - [gitea docker-hub](https://hub.docker.com/r/gitea/gitea)
 - [gitea doc](https://docs.gitea.io/en-us/install-with-docker/)
 - [drone](https://hub.docker.com/r/drone/drone)