Update README.md

Author: Aaronontheweb

README.md

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 # Petabridge.Cmd Docker Sidecar
 
-[![Docker Pulls](https://img.shields.io/docker/pulls/petabridge/pbm)](https://hub.docker.com/repository/docker/petabridge/pbm/)
+[![Docker Pulls](https://img.shields.io/docker/pulls/petabridge/pbm)](https://hub.docker.com/r/petabridge/pbm)
 
 [Petabridge.Cmd](https://cmd.petabridge.com/) sidecar Docker image - designed to be run side-by-side with [Akka.NET](https://getakka.net/) applications that expose the [Petabridge.Cmd.Host port](https://cmd.petabridge.com/articles/install/host-configuration.html).