Based on transmute-industries/sidetree.js#154
Shows how to initialize Element in Docker
Here we use docker-compose because we need mongo, ipfs and ganache running locally
docker-compose up --build
If you update mongoDbConnectionString contentAddressableStoreServiceUri and ethereumRpcUrl values to point to remote services, you don't need docker-compose and you can run:
docker build . -t element-in-docker
docker run -it element-in-docker