Update -o docs in README
Update -o docs in README

bf4/brakeman,kbrock/brakeman,codeclimate/brakeman-deprecated,jeffyip/brakeman,spcoder/brakeman,codeclimate/brakeman-deprecated,bf4/brakeman,oreoshake/brakeman,spcoder/brakeman,lee-leon/brakeman,spcoder/brakeman,jlecour/brakeman,masarakki/brakeman,masarakki/brakeman,github/brakeman,jlecour/brakeman,liqites/brakeman,cheerfulstoic/brakeman,liqites/brakeman,oreoshake/brakeman,jakeatwork/brakeman,lee-leon/brakeman,htdc/brakeman,cheerfulstoic/brakeman,dfens/brakeman,github/brakeman,kbrock/brakeman,jakeatwork/brakeman,dfens/brakeman,jlecour/brakeman,jeffyip/brakeman,htdc/brakeman,lee-leon/brakeman,bf4/brakeman,cheerfulstoic/brakeman,jakeatwork/brakeman,liqites/brakeman,htdc/brakeman,masarakki/brakeman,kbrock/brakeman,dfens/brakeman