installation instructions incorrect

[denen99]

The install references a "controlplane" directory after cloning the repo to get the docker compose infra running, but that directory does not exist. Are the install docs out of date?

[dcstang]

hi @denen99 - I think Orra has moved towards the planengine concept
so just replace the installation instructions to cd orra/planengine for now and that should work

This adds better reasoning capabilities
controlplane was <v0.2.3

@ezodude would be able to provide additional info on this if needed!