Add release notes for this validator release and previous. (#12312)
Add release notes for this validator release and previous. (#12312)


jpettitt/amphtml,donttrustthisbot/amphtml,erwinmombay/amphtml,voyagegroup/amphtml,yandex-pcode/amphtml,media-net/amphtml,ampproject/amphtml,camelburrito/amphtml,sharethrough/amphtml,alanorozco/amphtml,jmadler/amphtml,taboola/amphtml,yieldbot/amphtml,powdercloud/amphtml,mhc-gh/amphtml,prateekbh/amphtml,donttrustthisbot/amphtml,rsimha-amp/amphtml,jridgewell/amphtml,adup-tech/amphtml,cory-work/amphtml,nexxtv/amphtml,ampproject/amphtml,erwinmombay/amphtml,shawnbuso/amphtml,voyagegroup/amphtml,dotandads/amphtml,yieldmo/amphtml,prateekbh/amphtml,bpaduch/amphtml,jridgewell/amphtml,tlong2/amphtml,aghassemi/amphtml,camelburrito/amphtml,koshka/amphtml,camelburrito/amphtml,sebastianbenz/amphtml,honeybadgerdontcare/amphtml,sriramkrish85/amphtml,rsimha-amp/amphtml,taboola/amphtml,laterpay/amphtml,camelburrito/amphtml,bpaduch/amphtml,nexxtv/amphtml,jmadler/amphtml,widespace-os/amphtml,src-code/amphtml,Gregable/amphtml,kamtschatka/amphtml,cory-work/amphtml,taboola/amphtml,lannka/amphtml,koshka/amphtml,taboola/amphtml,cory-work/amphtml,tlong2/amphtml,jmadler/amphtml,pedjoni8/amphtml,pedjoni8/amphtml,jridgewell/amphtml,engtat/amphtml,Gregable/amphtml,adup-tech/amphtml,aghassemi/amphtml,bpaduch/amphtml,powdercloud/amphtml,src-code/amphtml,engtat/amphtml,powdercloud/amphtml,voyagegroup/amphtml,alanorozco/amphtml,pedjoni8/amphtml,camelburrito/amphtml,sebastianbenz/amphtml,media-net/amphtml,cory-work/amphtml,cvializ/amphtml,erwinmombay/amphtml,mhc-gh/amphtml,techhtml/amphtml,sharethrough/amphtml,alanorozco/amphtml,powdercloud/amphtml,jpettitt/amphtml,cory-work/amphtml,src-code/amphtml,engtat/amphtml,clawr/amphtml,cvializ/amphtml,zhangsu/amphtml,lannka/amphtml,yieldbot/amphtml,clawr/amphtml,chaveznvg/amphtml,mhc-gh/amphtml,tlong2/amphtml,camelburrito/amphtml,voyagegroup/amphtml,mhc-gh/amphtml,Gregable/amphtml,src-code/amphtml,alanorozco/amphtml,pedjoni8/amphtml,clawr/amphtml,donttrustthisbot/amphtml,lannka/amphtml,dotandads/amphtml,lannka/amphtml,luciancrasovan/amphtml,jpettitt/amphtml,taboola/amphtml,laterpay/amphtml,rsimha-amp/amphtml,voyagegroup/amphtml,alanorozco/amphtml,zhouyx/amphtml,tlong2/amphtml,pedjoni8/amphtml,media-net/amphtml,yieldmo/amphtml,ampproject/amphtml,ampproject/amphtml,kamtschatka/amphtml,luciancrasovan/amphtml,yandex-pcode/amphtml,media-net/amphtml,erwinmombay/amphtml,zhouyx/amphtml,yieldmo/amphtml,BenDz/amphtml,zhouyx/amphtml,jmadler/amphtml,luciancrasovan/amphtml,BenDz/amphtml,media-net/amphtml,danielrozenberg/amphtml,danielrozenberg/amphtml,widespace-os/amphtml,koshka/amphtml,sriramkrish85/amphtml,cvializ/amphtml,prateekbh/amphtml,cvializ/amphtml,alanorozco/amphtml,rsimha-amp/amphtml,sebastianbenz/amphtml,techhtml/amphtml,mhc-gh/amphtml,techhtml/amphtml,zhouyx/amphtml,jmadler/amphtml,lannka/amphtml,dotandads/amphtml,engtat/amphtml,ampproject/amphtml,yieldbot/amphtml,techhtml/amphtml,yieldbot/amphtml,bpaduch/amphtml,clawr/amphtml,chaveznvg/amphtml,rsimha-amp/amphtml,dotandads/amphtml,smartadserver/amphtml,yandex-pcode/amphtml,BenDz/amphtml,zhouyx/amphtml,zhangsu/amphtml,prateekbh/amphtml,Gregable/amphtml,adup-tech/amphtml,luciancrasovan/amphtml,nexxtv/amphtml,dotandads/amphtml,jridgewell/amphtml,shawnbuso/amphtml,tlong2/amphtml,rsimha-amp/amphtml,honeybadgerdontcare/amphtml,sebastianbenz/amphtml,jridgewell/amphtml,honeybadgerdontcare/amphtml,mhc-gh/amphtml,erwinmombay/amphtml,chaveznvg/amphtml,alanorozco/amphtml,aghassemi/amphtml,yieldmo/amphtml,honeybadgerdontcare/amphtml,kamtschatka/amphtml,jridgewell/amphtml,Gregable/amphtml,media-net/amphtml,widespace-os/amphtml,shawnbuso/amphtml,kamtschatka/amphtml,jpettitt/amphtml,chaveznvg/amphtml,erwinmombay/amphtml,Gregable/amphtml,engtat/amphtml,BenDz/amphtml,jpettitt/amphtml,jmadler/amphtml,dotandads/amphtml,sebastianbenz/amphtml,Gregable/amphtml,sriramkrish85/amphtml,kamtschatka/amphtml,sriramkrish85/amphtml,danielrozenberg/amphtml,clawr/amphtml,widespace-os/amphtml,shawnbuso/amphtml,chaveznvg/amphtml,sharethrough/amphtml,cvializ/amphtml,taboola/amphtml,smartadserver/amphtml,luciancrasovan/amphtml,zhouyx/amphtml,clawr/amphtml,media-net/amphtml,mhc-gh/amphtml,nexxtv/amphtml,donttrustthisbot/amphtml,chaveznvg/amphtml,danielrozenberg/amphtml,widespace-os/amphtml,smartadserver/amphtml,ampproject/amphtml,koshka/amphtml,jpettitt/amphtml,clawr/amphtml,sriramkrish85/amphtml,adup-tech/amphtml,yieldmo/amphtml,smartadserver/amphtml,BenDz/amphtml,donttrustthisbot/amphtml,honeybadgerdontcare/amphtml,aghassemi/amphtml,jpettitt/amphtml,alanorozco/amphtml,nexxtv/amphtml,yandex-pcode/amphtml,zhangsu/amphtml,laterpay/amphtml,powdercloud/amphtml,voyagegroup/amphtml,zhouyx/amphtml,nexxtv/amphtml,shawnbuso/amphtml,rsimha-amp/amphtml,luciancrasovan/amphtml,yieldmo/amphtml,powdercloud/amphtml,prateekbh/amphtml,koshka/amphtml,yandex-pcode/amphtml,sharethrough/amphtml,bpaduch/amphtml,donttrustthisbot/amphtml,aghassemi/amphtml,engtat/amphtml,bpaduch/amphtml,src-code/amphtml,zhangsu/amphtml,sriramkrish85/amphtml,danielrozenberg/amphtml,zhangsu/amphtml,shawnbuso/amphtml,techhtml/amphtml,Gregable/amphtml,lannka/amphtml,camelburrito/amphtml,kamtschatka/amphtml,aghassemi/amphtml,danielrozenberg/amphtml,zhangsu/amphtml,cvializ/amphtml,sharethrough/amphtml,nexxtv/amphtml,luciancrasovan/amphtml,taboola/amphtml,engtat/amphtml,lannka/amphtml,laterpay/amphtml,adup-tech/amphtml,koshka/amphtml,pedjoni8/amphtml,yandex-pcode/amphtml,honeybadgerdontcare/amphtml,honeybadgerdontcare/amphtml,yieldbot/amphtml,ampproject/amphtml,prateekbh/amphtml,voyagegroup/amphtml,laterpay/amphtml,sebastianbenz/amphtml,techhtml/amphtml,jridgewell/amphtml,ampproject/amphtml,smartadserver/amphtml,media-net/amphtml,danielrozenberg/amphtml,powdercloud/amphtml,tlong2/amphtml,yieldbot/amphtml,sharethrough/amphtml,yieldmo/amphtml,cory-work/amphtml,danielrozenberg/amphtml,laterpay/amphtml,prateekbh/amphtml,jpettitt/amphtml,src-code/amphtml,mhc-gh/amphtml,BenDz/amphtml,donttrustthisbot/amphtml,adup-tech/amphtml,bpaduch/amphtml,widespace-os/amphtml,shawnbuso/amphtml,smartadserver/amphtml,cory-work/amphtml,yandex-pcode/amphtml