adding more info about Bro install and explaining vt_query error
adding more info about Bro install and explaining vt_query error


Former-commit-id: 4bf8783a68dfa580e7a9633e6dd27580c6c128e3
djtotten/workbench,SuperCowPowers/workbench,SuperCowPowers/workbench,djtotten/workbench,SuperCowPowers/workbench,djtotten/workbench