"signatures" did not exist on "ef0f1509dd2a2a3ba5798362e2be21108b705a85"
Merge branch 'winh-frontend-testing-levels-diagrams-docs' into 'master'
Add diagrams for frontend testing levels (docs) See merge request gitlab-org/gitlab-ce!31999
Add diagrams for frontend testing levels (docs) See merge request gitlab-org/gitlab-ce!31999