I think there’s a little bit of confusion going on here.
The OpenMRS SDK is not a docker image and it’s not run from docker. https://wiki.openmrs.org/display/docs/OpenMRS+SDK It’s a maven plugin.
You can use the OpenMRS SDK to run OpenMRS platform and reference application (and dedicated mysql instance) using docker.
But indeed that documentation looks wrong. I updated https://wiki.openmrs.org/display/docs/Installing+OpenMRS+on+Docker with things that should work. Please update if that’s not correct.
I strongly recommend to use docker-compose instead of bare docker commands.