Missing a clear indication when the container is up & running

[mkrl]

Thanks for bundling this all together!

I have a small suggestion to add. Since it takes some time to spin up the container (especially if you have not performed a docker commit yet), it would be very handy to have some kind of indication in the terminal output stating that the server is ready to access.

It would be cool to either just have echo "The server is running at http://localhost:7860/" or even xdg-open http://localhost:7860/ for extra convenience.

[mallorbc]

I had originally tried to print out a message but for whatever reason, it was not appearing. I may try to add this in the future. But otherwise, I would accept a PR that fixes this issue.