cubicweb-brainomics #3280243 Add a doc [open]

A doc should be added:

  • for the schema
  • for the logic of the data (e.g. a score could be added for specific information on the subject, an assessment should always be created, ...)
prioritynormal
typebug
done in<not specified>
load3.000
load left1.000
closed by<not specified>