Docker VM docs are not accurate

Documentation says

>> docker run -p 8010:80 -p 9009:9009 -v `pwd`:/opt/galaxy/tools -i -t planemo/interactive

> This command will start Galaxy and various other services and then open a bash shell with Planemo available.

But it doesn't - this command simply starts a running Galaxy service but there's no interactive shell, so commands like ```test``` cannot be run. How do I use the ```planemo/interactive``` image to test toolshed tools?

Find the documentation containing the `planemo/interactive` Docker command and compare its stated behavior with the behavior reported here. Verify how the image should be used to access an interactive shell and run tool tests, then update the instructions to accurately describe the working command and workflow.

Written by the indexing model from the issue text.