The 'Importing' page missing instructions or pre-requisites to the necessary conditions before one can perform a ui import

[paul007ex]

The https://defectdojo.github.io/django-DefectDojo/integrations/importing/ page unfortunately does not specify the necessary pre-requisites to manually import scan results.

I'm very new to the product, so perhaps I am overlooking somewhere that it is stated and is much more obvious, but it ideally would contain the pre-conditions, which appear to be:

New Product -> New Engagement -> Add New Interactive Engagement -> Import

[manuel-sommer]

@mtesauro: I could make a PR to improve the documentation, but from my point of view the documentation is good enough as there is also this page https://defectdojo.github.io/django-DefectDojo/usage/models/ before the Importing documentation. So, if someone skips the documentation above just go get results, I personally don't know if we should align the documenation in this regards.