Add 10 Usability Heuristics for User Interface Design to the Usability menu for the design documentation
Problem
With https://gitlab.com/gitlab-org/design.gitlab.com/merge_requests/1448#note_187568144 we'll be adding error prevention to the usability menu, one of the 10 usability heuristics from NNgroup: https://www.nngroup.com/articles/ten-usability-heuristics/
We already have a few others as well.
Proposal
This issue is to discover which other heuristics we can add and what duplicate content we might already have existing in other places.