Clarify source instructions
Clarify source instructions

Co-Authored-By: gene1wood <554b3cd6285944658d6dcd5ab0d58c8e35cd6701@cementhorizon.com>
mozilla/MozDef,gdestuynder/MozDef,mpurzynski/MozDef,jeffbryner/MozDef,Phrozyn/MozDef,mpurzynski/MozDef,mpurzynski/MozDef,jeffbryner/MozDef,Phrozyn/MozDef,gdestuynder/MozDef,gdestuynder/MozDef,jeffbryner/MozDef,gdestuynder/MozDef,Phrozyn/MozDef,mozilla/MozDef,Phrozyn/MozDef,mozilla/MozDef,mozilla/MozDef,jeffbryner/MozDef,mpurzynski/MozDef