Merge pull request "Add healthcheck and backup labels" (#5)

Reviewed on: https://git.coopcloud.tech/coop-cloud/mumble/pulls/5

README.md

@@ -8,10 +8,10 @@ Low latency, high quality voice chat application.
 
 * **Maintainer**: [@amras](https://git.coopcloud.tech/amras)
 * **Category**: Apps
-* **Status**: 1, alpha
+* **Status**: 3, stable
 * **Image**: [mumblevoip/mumble-server](https://hub.docker.com/r/mumblevoip/mumble-server), 4, official
-* **Healthcheck**: No
-* **Backups**: No
+* **Healthcheck**: Yes
+* **Backups**: Yes
 * **Email**: N/A
 * **Tests**: No
 * **SSO**: N/A