Couldn't get it working - please update and add more docs.

[koedal]

At first I had the issue with the tombenke/darduino:v1.8.5 because you don't have a version 1.8.5.

Then I ran into an issue with openjdk-9-jre not being available.

Then I had some X11 issue and I didn't know where to go from there.

Please try to run from scratch and updates settings/docs accordingly. I'd love to not install a bunch of Arduino files, etc on my Mac.