Troubleshooting guide for "Inspecting 0 files" rubocop issue
What this MR do?
- adds troubleshooting guide for temporary fix of rubocop 0 inspecting files issue #271 (closed)
/cc @rspeicher @grzesiek
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
/cc @rspeicher @grzesiek