doc updates
doc updates

davidhan527/secureheaders,reedloden/secureheaders,reedloden/secureheaders,codelion/secureheaders,twitter/secureheaders,didacte/secureheaders,eoy/secureheaders,didacte/secureheaders,reedloden/secureheaders,didacte/secureheaders,eoy/secureheaders,eoy/secureheaders,wlchou/secureheaders,codelion/secureheaders,wlchou/secureheaders,wlchou/secureheaders,codelion/secureheaders,jacobbednarz/secureheaders