There is a "TODO" in the Setup-building.rst

[Mariatta]

I noticed a TODO in the setup-building.rst page.

.. TODO: add docker instructions

Are we still planning to complete this?
If not, can we remove it?

Action items:

• Either remove the todo
• Or complete the todo

[Mariatta]

@marlenezw you added the TODO item here a year ago. Any updates?
Is this still needed? If so, what is needed to complete this todo item?