add data and output folders

[TASM-ines-heimann]

• Is your feature request related to a problem? Please describe.

Add more information on the data and output folders @olivermiddlemasdft

• Describe the solution you'd like

Less cluttered repo structure

• Describe alternatives you've considered

A clear and concise description of any alternative solutions or features you've considered.

• Additional context

Add any other context or screenshots about the feature request here.

[olivermiddlemasdft]

Agreed, will do!