Update readme.md

readme.md

@@ -349,6 +349,9 @@ The folllowing substition **presets** are provided my the [Luxon](https://moment
 | `DATETIME_FULL_WITH_SECONDS` | full date and time with abbreviated named offset with seconds      | `October 14, 1983, 1:30:23 PM EDT`                           | `14 octobre 1983 à 13:30:23 UTC−4`                         |
 | `DATETIME_HUGE_WITH_SECONDS` | full date and time with weekday and full named offset with seconds | `Friday, October 14, 1983, 1:30:23 PM Eastern Daylight Time` | `vendredi 14 octobre 1983 à 13:30:23 heure d’été de l’Est` |
 
+## Stars
+[![Stars](https://starchart.cc/dockur/portainer-backup.svg?variant=adaptive)](https://starchart.cc/dockur/portainer-backup)
+
 [build_url]: https://github.com/dockur/portainer-backup/
 [hub_url]: https://hub.docker.com/r/dockurr/portainer-backup/
 [tag_url]: https://hub.docker.com/r/dockurr/portainer-backup/tags