Merge pull request molecularsets#10 from shayakhmetov/master

README update: Docker pull from DockerHub

README.md

@@ -157,7 +157,7 @@ You can specify the device and model by running `python run.py --device cuda:5 -
 ## Installation
 
 ### Docker
-* Build an image based on the Dockerfile `nvidia-docker image build --tag <image_name> moses/`, where `moses/` is a cloned repository from github.
+* You can pull already existing image from DockerHub by `docker pull molecularsets/moses`. Otherwise, build an image based on the Dockerfile `nvidia-docker image build --tag <image_name> moses/`, where `moses/` is a cloned repository from github.
 * Create a container from the created image, e.g. by running `nvidia-docker run -it <container_name> --network="host" --shm-size 1G <image_name>`
 * The dataset is already downloaded during image building and the current repository is available at `/code` inside the docker container.