Sorry, I couldn’t get to writing the setup instructions today. I will do that right away. I understand that incomplete instructions can be a big frustration. Also, we are building and using Dgraph binary from master, some bug fixes went in that we haven’t officially released. Could you tell me if you are on Mac/Linux so that I can share the latest binary with you? (Or you can install Dgraph from source).
Update - Here are the updated instructions for getting Gru up and running - https://github.com/dgraph-io/gru/blob/develop/README.md. I am also thinking of building a Docker image for Gru, so that it’s more easier to get started and play around with. I see Gru becoming really polished in the next couple of weeks. Feel free to update the docs if you find something missing and I would be happy to accept a PR.
I would also encourage you to join our Slack community. You can invite yourself using http://slack.dgraph.io/. You can also ping us there whenever you are stuck and we will do our best to help you.
P.S. - We just started using Gru in production today and a couple of candidates have already taken the quiz smoothly.