remove reference to iframe from docs
remove reference to iframe from docs

adiant/amphtml,jpettitt/amphtml,BrightcoveOS/amphtml,jlucero-contentad/amphtml,src-code/amphtml,honeybadgerdontcare/amphtml,wjfang/amphtml,simplereach/amphtml,sortable/amphtml,jpettitt/amphtml,cvializ/amphtml,adiant/amphtml,cvializ/amphtml,smartadserver/amphtml,Re-lM/amphtml,jdelhommeau/amphtml,plista/amphtml,yieldbot/amphtml,ithinkihaveacat/amphtml,mlb7687/amphtml,zhangsu/amphtml,arealit/amphtml,NataliaLKB/amphtml,techhtml/amphtml,AaronCritchley/amphtml,shawnbuso/amphtml,rsimha-amp/amphtml,rifler/amphtml,DarXector/amphtml,Adtoma/amphtml,keithwrightbos/amphtml,jmadler/amphtml,Mixpo/amphtml,mhc-gh/amphtml,danielrozenberg/amphtml,clawr/amphtml,donttrustthisbot/amphtml,BrightcoveOS/amphtml,shawnbuso/amphtml,pedjoni8/amphtml,rsimha-amp/amphtml,ampproject/amphtml,honeybadgerdontcare/amphtml,lannka/amphtml,amoad-amoe/amphtml,kmh287/amphtml,techhtml/amphtml,NataliaLKB/amphtml,alanorozco/amphtml,nekodo/amphtml,BenDz/amphtml,interspacejp/amphtml,yandex-pcode/amphtml,voyagegroup/amphtml,vmarteev/amphtml,cvializ/amphtml,rlugojr/amphtml,vmarteev/amphtml,Gregable/amphtml,rsimha-amp/amphtml,sklobovskaya/amphtml,arealit/amphtml,galeksic/amphtml,rifler/amphtml,widespace-os/amphtml,jridgewell/amphtml,arealit/amphtml,sortable/amphtml,triplelift/amphtml,kixer-com/amphtml,triplelift/amphtml,pietergreyling/amphtml,nekodo/amphtml,keithwrightbos/amphtml,jasti/amphtml,dotandads/amphtml,keithwrightbos/amphtml,jpettitt/amphtml,gumgum/amphtml,taboola/amphtml,wjfang/amphtml,keithwrightbos/amphtml,honeybadgerdontcare/amphtml,prateekbh/amphtml,Lith/amphtml,spotxchange/amphtml,jlucero-contentad/amphtml,plista/amphtml,media-net/amphtml,src-code/amphtml,ericlindley-g/amphtml,donttrustthisbot/amphtml,nathangoulding/amphtml,sortable/amphtml,engtat/amphtml,ColombiaAnalytics/amphtml,jasti/amphtml,ecoron/amphtml,vmarteev/amphtml,rsimha-amp/amphtml,ADITION/amphtml,sriramkrish85/amphtml,yevheniiminin/amphtml,mhc-gh/amphtml,ruturajv-media-net/amphtml,prateekbh/amphtml,voyagegroup/amphtml,luciancrasovan/amphtml,shawnbuso/amphtml,shawnbuso/amphtml,wjfang/amphtml,Gregable/amphtml,burtcorp/amphtml,pietergreyling/amphtml,amoad-amoe/amphtml,spotxchange/amphtml,interspacejp/amphtml,koshka/amphtml,taboola/amphtml,adiant/amphtml,avimehta/amphtml,erwinmombay/amphtml,yandex-pcode/amphtml,erwinmombay/amphtml,DistroScale/amphtml,Gregable/amphtml,zhangsu/amphtml,AaronCritchley/amphtml,ColombiaAnalytics/amphtml,camelburrito/amphtml,aghassemi/amphtml,jdelhommeau/amphtml,yandex-pcode/amphtml,DistroScale/amphtml,nathangoulding/amphtml,taboola/amphtml,ericlindley-g/amphtml,devjsun/amphtml,ADITION/amphtml,tdrl/amphtml,voyagegroup/amphtml,camelburrito/amphtml,Meggin/amphtml,ruturajv-media-net/amphtml,jridgewell/amphtml,spotxchange/amphtml,prateekbh/amphtml,chaveznvg/amphtml,Adtoma/amphtml,techhtml/amphtml,DarXector/amphtml,comScore/amphtml,lannka/amphtml,jmadler/amphtml,powdercloud/amphtml,loic-seguin/amphtml,sklobovskaya/amphtml,koshka/amphtml,tlong2/amphtml,dvoytenko/amphtml,dvoytenko/amphtml,rajkumarsrk/amphtml,spotxchange/amphtml,media-net/amphtml,adiant/amphtml,burtcorp/amphtml,britice/amphtml,jlucero-contentad/amphtml,sharethrough/amphtml,interspacejp/amphtml,galeksic/amphtml,btownsend/amphtml,tlong2/amphtml,danielrozenberg/amphtml,amoad-amoe/amphtml,btownsend/amphtml,galeksic/amphtml,kamtschatka/amphtml,rajkumarsrk/amphtml,gumgum/amphtml,tdrl/amphtml,smartadserver/amphtml,zhucl/amphtml,jdelhommeau/amphtml,yieldbot/amphtml,dotandads/amphtml,DAC-f1h-dev/amphtml,jlucero-contentad/amphtml,wjfang/amphtml,BrightcoveOS/amphtml,devjsun/amphtml,smartadserver/amphtml,spotxchange/amphtml,criteo-forks/amphtml,sriramkrish85/amphtml,kixer-com/amphtml,tlong2/amphtml,cory-work/amphtml,BrightcoveOS/amphtml,sklobovskaya/amphtml,jlucero-contentad/amphtml,britice/amphtml,BenDz/amphtml,ithinkihaveacat/amphtml,koshka/amphtml,chaveznvg/amphtml,adup-tech/amphtml,smartadserver/amphtml,voyagegroup/amphtml,bpaduch/amphtml,BrightcoveOS/amphtml,erwinmombay/amphtml,luciancrasovan/amphtml,engtat/amphtml,gumgum/amphtml,arealit/amphtml,camelburrito/amphtml,comScore/amphtml,avimehta/amphtml,zhouyx/amphtml,koshka/amphtml,Lith/amphtml,adtechnology/amphtml,sriramkrish85/amphtml,dotandads/amphtml,zhangsu/amphtml,BenDz/amphtml,sebastianbenz/amphtml,bpaduch/amphtml,mhc-gh/amphtml,pedjoni8/amphtml,simplereach/amphtml,yevheniiminin/amphtml,media-net/amphtml,engtat/amphtml,yandex-pcode/amphtml,tlong2/amphtml,laterpay/amphtml,mhc-gh/amphtml,media-net/amphtml,adiant/amphtml,Gregable/amphtml,avimehta/amphtml,zhouyx/amphtml,tdrl/amphtml,ericlindley-g/amphtml,dvoytenko/amphtml,laterpay/amphtml,BenDz/amphtml,burtcorp/amphtml,donttrustthisbot/amphtml,luciancrasovan/amphtml,yevheniiminin/amphtml,Mixpo/amphtml,zhangsu/amphtml,criteo-forks/amphtml,DistroScale/amphtml,DarXector/amphtml,jasti/amphtml,aghassemi/amphtml,comScore/amphtml,luciancrasovan/amphtml,jpettitt/amphtml,engtat/amphtml,danielrozenberg/amphtml,kamtschatka/amphtml,voyagegroup/amphtml,arealit/amphtml,aghassemi/amphtml,jridgewell/amphtml,DAC-f1h-dev/amphtml,kamtschatka/amphtml,Meggin/amphtml,cvializ/amphtml,JuliusThms/amphtml,luciancrasovan/amphtml,sharethrough/amphtml,rlugojr/amphtml,DistroScale/amphtml,BrightcoveOS/amphtml,spotxchange/amphtml,keithwrightbos/amphtml,cory-work/amphtml,Re-lM/amphtml,DarXector/amphtml,yieldmo/amphtml,widespace-os/amphtml,keithwrightbos/amphtml,sharethrough/amphtml,yandex-pcode/amphtml,fullspeed-sp/amphtml,BenDz/amphtml-atinternet,rifler/amphtml,powdercloud/amphtml,shawnbuso/amphtml,danielrozenberg/amphtml,pedjoni8/amphtml,ecoron/amphtml,rlugojr/amphtml,dotandads/amphtml,cory-work/amphtml,vmarteev/amphtml,src-code/amphtml,zhouyx/amphtml,tlong2/amphtml,jpettitt/amphtml,powdercloud/amphtml,ericlindley-g/amphtml,rifler/amphtml,zhangsu/amphtml,pedjoni8/amphtml,jridgewell/amphtml,alanorozco/amphtml,nexxtv/amphtml,pietergreyling/amphtml,sebastianbenz/amphtml,NataliaLKB/amphtml,jdelhommeau/amphtml,ruturajv-media-net/amphtml,yieldbot/amphtml,media-net/amphtml,lannka/amphtml,ecoron/amphtml,mkhatib/amphtml,lannka/amphtml,keithwrightbos/amphtml,dvoytenko/amphtml,erwinmombay/amphtml,dvoytenko/amphtml,sriramkrish85/amphtml,media-net/amphtml,erwinmombay/amphtml,yieldmo/amphtml,wjfang/amphtml,kmh287/amphtml,shawnbuso/amphtml,sebastianbenz/amphtml,nekodo/amphtml,pedjoni8/amphtml,Lith/amphtml,Re-lM/amphtml,chaveznvg/amphtml,DistroScale/amphtml,aghassemi/amphtml,cory-work/amphtml,aghassemi/amphtml,Mixpo/amphtml,src-code/amphtml,laterpay/amphtml,JuliusThms/amphtml,ColombiaAnalytics/amphtml,rsimha-amp/amphtml,avimehta/amphtml,camelburrito/amphtml,ampproject/amphtml,jasti/amphtml,avimehta/amphtml,alanorozco/amphtml,pietergreyling/amphtml,widespace-os/amphtml,rifler/amphtml,sklobovskaya/amphtml,fullspeed-sp/amphtml,zhouyx/amphtml,ampproject/amphtml,lzanol/amphtml,tdrl/amphtml,BenDz/amphtml,taboola/amphtml,cory-work/amphtml,mlb7687/amphtml,prateekbh/amphtml,ColombiaAnalytics/amphtml,Gregable/amphtml,yieldbot/amphtml,rlugojr/amphtml,ericlindley-g/amphtml,gumgum/amphtml,yieldmo/amphtml,sebastianbenz/amphtml,sriramkrish85/amphtml,chaveznvg/amphtml,yieldbot/amphtml,jdelhommeau/amphtml,lzanol/amphtml,jasti/amphtml,amoad-amoe/amphtml,prateekbh/amphtml,ampproject/amphtml,jmadler/amphtml,adtechnology/amphtml,mlb7687/amphtml,yieldbot/amphtml,zhouyx/amphtml,avimehta/amphtml,kmh287/amphtml,jpettitt/amphtml,yieldmo/amphtml,tdrl/amphtml,kixer-com/amphtml,mhc-gh/amphtml,interspacejp/amphtml,prateekbh/amphtml,mhc-gh/amphtml,Mobusi-ads/amphtml,donttrustthisbot/amphtml,clawr/amphtml,DAC-f1h-dev/amphtml,yieldmo/amphtml,arealit/amphtml,sortable/amphtml,pietergreyling/amphtml,clawr/amphtml,triplelift/amphtml,techhtml/amphtml,danielrozenberg/amphtml,galeksic/amphtml,Lith/amphtml,chaveznvg/amphtml,yevheniiminin/amphtml,sortable/amphtml,rifler/amphtml,devjsun/amphtml,mkhatib/amphtml,ruturajv-media-net/amphtml,cory-work/amphtml,laterpay/amphtml,adiant/amphtml,kamtschatka/amphtml,luciancrasovan/amphtml,loic-seguin/amphtml,devjsun/amphtml,nexxtv/amphtml,taboola/amphtml,danielrozenberg/amphtml,NataliaLKB/amphtml,mhc-gh/amphtml,vmarteev/amphtml,comScore/amphtml,camelburrito/amphtml,jridgewell/amphtml,sharethrough/amphtml,sklobovskaya/amphtml,honeybadgerdontcare/amphtml,chrisbrent/amphtml,kamtschatka/amphtml,loic-seguin/amphtml,nexxtv/amphtml,engtat/amphtml,clawr/amphtml,nekodo/amphtml,simplereach/amphtml,AaronCritchley/amphtml,rsimha-amp/amphtml,plista/amphtml,mkhatib/amphtml,kmh287/amphtml,gumgum/amphtml,ADITION/amphtml,ampproject/amphtml,cvializ/amphtml,britice/amphtml,nathangoulding/amphtml,ecoron/amphtml,jpettitt/amphtml,jridgewell/amphtml,rajkumarsrk/amphtml,ithinkihaveacat/amphtml,JuliusThms/amphtml,widespace-os/amphtml,fullspeed-sp/amphtml,burtcorp/amphtml,techhtml/amphtml,ecoron/amphtml,engtat/amphtml,interspacejp/amphtml,Re-lM/amphtml,src-code/amphtml,ericlindley-g/amphtml,powdercloud/amphtml,sortable/amphtml,danielrozenberg/amphtml,devjsun/amphtml,fullspeed-sp/amphtml,kmh287/amphtml,Mobusi-ads/amphtml,Adtoma/amphtml,fullspeed-sp/amphtml,mlb7687/amphtml,donttrustthisbot/amphtml,triplelift/amphtml,mkhatib/amphtml,cvializ/amphtml,kixer-com/amphtml,sebastianbenz/amphtml,interspacejp/amphtml,Lith/amphtml,rlugojr/amphtml,adup-tech/amphtml,ADITION/amphtml,AaronCritchley/amphtml,zhucl/amphtml,zhangsu/amphtml,smartadserver/amphtml,taboola/amphtml,criteo-forks/amphtml,donttrustthisbot/amphtml,ruturajv-media-net/amphtml,zhucl/amphtml,ecoron/amphtml,dvoytenko/amphtml,laterpay/amphtml,yieldmo/amphtml,smartadserver/amphtml,JuliusThms/amphtml,bpaduch/amphtml,taboola/amphtml,nexxtv/amphtml,BenDz/amphtml-atinternet,DistroScale/amphtml,Mobusi-ads/amphtml,DarXector/amphtml,kixer-com/amphtml,mlb7687/amphtml,lzanol/amphtml,amoad-amoe/amphtml,JuliusThms/amphtml,wjfang/amphtml,bpaduch/amphtml,BenDz/amphtml-atinternet,zhucl/amphtml,adup-tech/amphtml,adup-tech/amphtml,britice/amphtml,criteo-forks/amphtml,btownsend/amphtml,DAC-f1h-dev/amphtml,Gregable/amphtml,criteo-forks/amphtml,jlucero-contentad/amphtml,dotandads/amphtml,pietergreyling/amphtml,danielrozenberg/amphtml,alanorozco/amphtml,AaronCritchley/amphtml,loic-seguin/amphtml,camelburrito/amphtml,criteo-forks/amphtml,ADITION/amphtml,koshka/amphtml,nexxtv/amphtml,chaveznvg/amphtml,burtcorp/amphtml,chrisbrent/amphtml,comScore/amphtml,Adtoma/amphtml,zhouyx/amphtml,Adtoma/amphtml,sharethrough/amphtml,burtcorp/amphtml,aghassemi/amphtml,triplelift/amphtml,Mobusi-ads/amphtml,jmadler/amphtml,rajkumarsrk/amphtml,kixer-com/amphtml,zhucl/amphtml,powdercloud/amphtml,sebastianbenz/amphtml,zhucl/amphtml,Gregable/amphtml,kmh287/amphtml,jridgewell/amphtml,bpaduch/amphtml,voyagegroup/amphtml,src-code/amphtml,voyagegroup/amphtml,ampproject/amphtml,Mixpo/amphtml,yevheniiminin/amphtml,honeybadgerdontcare/amphtml,adup-tech/amphtml,bpaduch/amphtml,JuliusThms/amphtml,yandex-pcode/amphtml,rsimha-amp/amphtml,tdrl/amphtml,clawr/amphtml,vmarteev/amphtml,gumgum/amphtml,vmarteev/amphtml,Meggin/amphtml,rajkumarsrk/amphtml,yieldmo/amphtml,Mixpo/amphtml,media-net/amphtml,shawnbuso/amphtml,sriramkrish85/amphtml,mkhatib/amphtml,yandex-pcode/amphtml,Gregable/amphtml,lannka/amphtml,koshka/amphtml,jpettitt/amphtml,mlb7687/amphtml,lzanol/amphtml,rlugojr/amphtml,DAC-f1h-dev/amphtml,laterpay/amphtml,lzanol/amphtml,galeksic/amphtml,triplelift/amphtml,jdelhommeau/amphtml,erwinmombay/amphtml,mkhatib/amphtml,zhouyx/amphtml,mhc-gh/amphtml,AaronCritchley/amphtml,nexxtv/amphtml,adtechnology/amphtml,clawr/amphtml,wjfang/amphtml,camelburrito/amphtml,fullspeed-sp/amphtml,alanorozco/amphtml,jmadler/amphtml,adtechnology/amphtml,tlong2/amphtml,zhucl/amphtml,pedjoni8/amphtml,devjsun/amphtml,powdercloud/amphtml,kixer-com/amphtml,luciancrasovan/amphtml,media-net/amphtml,Mixpo/amphtml,amoad-amoe/amphtml,BenDz/amphtml,ampproject/amphtml,chrisbrent/amphtml,adiant/amphtml,lannka/amphtml,alanorozco/amphtml,sharethrough/amphtml,powdercloud/amphtml,widespace-os/amphtml,nathangoulding/amphtml,jmadler/amphtml,adtechnology/amphtml,donttrustthisbot/amphtml,ruturajv-media-net/amphtml,yevheniiminin/amphtml,lzanol/amphtml,gumgum/amphtml,rajkumarsrk/amphtml,sklobovskaya/amphtml,ampproject/amphtml,DarXector/amphtml,Lith/amphtml,adup-tech/amphtml,jasti/amphtml,comScore/amphtml,honeybadgerdontcare/amphtml,dotandads/amphtml,cory-work/amphtml,alanorozco/amphtml,ithinkihaveacat/amphtml,plista/amphtml,prateekbh/amphtml,engtat/amphtml,alanorozco/amphtml,honeybadgerdontcare/amphtml,nexxtv/amphtml,adtechnology/amphtml,Mobusi-ads/amphtml,Mobusi-ads/amphtml,widespace-os/amphtml,Adtoma/amphtml,clawr/amphtml,bpaduch/amphtml,sklobovskaya/amphtml,lannka/amphtml,DAC-f1h-dev/amphtml,kamtschatka/amphtml,arealit/amphtml,rajkumarsrk/amphtml,techhtml/amphtml,comScore/amphtml