Now's a good time to 'save' our work. Run docker ps to list all your docker containers

you can 'save' this docker container to your account with

docker commit CONTAINER_ID USERNAME/mytensorflow

where the CONTAINER_ID is the 12 character that is to the left of the image name and USERNAME is your docker login name. So in my case, docker commit c2a0a7f0a7bb ladyada/mytensorflow

It will take a few minutes while Docker runs, eventually you'll get this on the terminal:

Then push it to docker hub with docker push username/containername

Then visit your dockerhub profile to see that you have in fact pushed the docker image