Updating the amp-experiment example to a valid JSON. (#16382)
Updating the amp-experiment example to a valid JSON. (#16382)

Updating the amp-experiment example to a valid JSON, so developers can copy/paste it without running into a `Unexpected token a in JSON at position 25` like error.
lannka/amphtml,taboola/amphtml,sharethrough/amphtml,src-code/amphtml,taboola/amphtml,alanorozco/amphtml,honeybadgerdontcare/amphtml,adup-tech/amphtml,smartadserver/amphtml,honeybadgerdontcare/amphtml,tlong2/amphtml,laterpay/amphtml,Gregable/amphtml,cory-work/amphtml,mhc-gh/amphtml,nexxtv/amphtml,danielrozenberg/amphtml,src-code/amphtml,mhc-gh/amphtml,sharethrough/amphtml,techhtml/amphtml,jpettitt/amphtml,sebastianbenz/amphtml,BenDz/amphtml,erwinmombay/amphtml,rsimha-amp/amphtml,cory-work/amphtml,cvializ/amphtml,lannka/amphtml,media-net/amphtml,jpettitt/amphtml,techhtml/amphtml,Gregable/amphtml,pedjoni8/amphtml,honeybadgerdontcare/amphtml,zhouyx/amphtml,zhangsu/amphtml,jpettitt/amphtml,pedjoni8/amphtml,mhc-gh/amphtml,src-code/amphtml,pedjoni8/amphtml,BenDz/amphtml,erwinmombay/amphtml,yandex-pcode/amphtml,zhangsu/amphtml,mhc-gh/amphtml,widespace-os/amphtml,mhc-gh/amphtml,pedjoni8/amphtml,koshka/amphtml,techhtml/amphtml,media-net/amphtml,jridgewell/amphtml,smartadserver/amphtml,chaveznvg/amphtml,yieldbot/amphtml,danielrozenberg/amphtml,zhouyx/amphtml,voyagegroup/amphtml,danielrozenberg/amphtml,adup-tech/amphtml,nexxtv/amphtml,pedjoni8/amphtml,yieldbot/amphtml,voyagegroup/amphtml,koshka/amphtml,cvializ/amphtml,cvializ/amphtml,nexxtv/amphtml,sebastianbenz/amphtml,techhtml/amphtml,sebastianbenz/amphtml,erwinmombay/amphtml,nexxtv/amphtml,koshka/amphtml,chaveznvg/amphtml,jridgewell/amphtml,cory-work/amphtml,dotandads/amphtml,media-net/amphtml,Gregable/amphtml,danielrozenberg/amphtml,yieldbot/amphtml,aghassemi/amphtml,media-net/amphtml,jridgewell/amphtml,ampproject/amphtml,widespace-os/amphtml,alanorozco/amphtml,tlong2/amphtml,zhouyx/amphtml,erwinmombay/amphtml,dotandads/amphtml,aghassemi/amphtml,widespace-os/amphtml,src-code/amphtml,sebastianbenz/amphtml,alanorozco/amphtml,taboola/amphtml,jridgewell/amphtml,laterpay/amphtml,yandex-pcode/amphtml,ampproject/amphtml,widespace-os/amphtml,adup-tech/amphtml,cory-work/amphtml,zhouyx/amphtml,lannka/amphtml,cvializ/amphtml,aghassemi/amphtml,pedjoni8/amphtml,lannka/amphtml,voyagegroup/amphtml,kamtschatka/amphtml,taboola/amphtml,taboola/amphtml,mhc-gh/amphtml,BenDz/amphtml,zhouyx/amphtml,honeybadgerdontcare/amphtml,sharethrough/amphtml,laterpay/amphtml,danielrozenberg/amphtml,prateekbh/amphtml,dotandads/amphtml,nexxtv/amphtml,media-net/amphtml,sharethrough/amphtml,prateekbh/amphtml,jmadler/amphtml,zhouyx/amphtml,jpettitt/amphtml,sebastianbenz/amphtml,lannka/amphtml,chaveznvg/amphtml,techhtml/amphtml,jmadler/amphtml,rsimha-amp/amphtml,Gregable/amphtml,prateekbh/amphtml,yieldbot/amphtml,Gregable/amphtml,ampproject/amphtml,zhangsu/amphtml,Gregable/amphtml,jridgewell/amphtml,ampproject/amphtml,nexxtv/amphtml,alanorozco/amphtml,zhangsu/amphtml,yieldbot/amphtml,mhc-gh/amphtml,alanorozco/amphtml,yandex-pcode/amphtml,src-code/amphtml,taboola/amphtml,sharethrough/amphtml,dotandads/amphtml,tlong2/amphtml,ampproject/amphtml,smartadserver/amphtml,rsimha-amp/amphtml,zhouyx/amphtml,chaveznvg/amphtml,BenDz/amphtml,prateekbh/amphtml,aghassemi/amphtml,jridgewell/amphtml,honeybadgerdontcare/amphtml,erwinmombay/amphtml,prateekbh/amphtml,smartadserver/amphtml,voyagegroup/amphtml,cvializ/amphtml,media-net/amphtml,koshka/amphtml,smartadserver/amphtml,aghassemi/amphtml,jpettitt/amphtml,alanorozco/amphtml,sebastianbenz/amphtml,lannka/amphtml,voyagegroup/amphtml,yandex-pcode/amphtml,media-net/amphtml,jmadler/amphtml,kamtschatka/amphtml,jpettitt/amphtml,media-net/amphtml,honeybadgerdontcare/amphtml,widespace-os/amphtml,ampproject/amphtml,rsimha-amp/amphtml,cory-work/amphtml,adup-tech/amphtml,ampproject/amphtml,jmadler/amphtml,Gregable/amphtml,jridgewell/amphtml,jmadler/amphtml,danielrozenberg/amphtml,prateekbh/amphtml,aghassemi/amphtml,voyagegroup/amphtml,zhangsu/amphtml,kamtschatka/amphtml,laterpay/amphtml,koshka/amphtml,jpettitt/amphtml,adup-tech/amphtml,smartadserver/amphtml,dotandads/amphtml,koshka/amphtml,ampproject/amphtml,alanorozco/amphtml,yandex-pcode/amphtml,BenDz/amphtml,cvializ/amphtml,danielrozenberg/amphtml,laterpay/amphtml,rsimha-amp/amphtml,kamtschatka/amphtml,tlong2/amphtml,yieldbot/amphtml,jpettitt/amphtml,tlong2/amphtml,yandex-pcode/amphtml,widespace-os/amphtml,honeybadgerdontcare/amphtml,prateekbh/amphtml,techhtml/amphtml,dotandads/amphtml,BenDz/amphtml,zhangsu/amphtml,nexxtv/amphtml,lannka/amphtml,taboola/amphtml,rsimha-amp/amphtml,kamtschatka/amphtml,voyagegroup/amphtml,laterpay/amphtml,alanorozco/amphtml,yandex-pcode/amphtml,kamtschatka/amphtml,jmadler/amphtml,chaveznvg/amphtml,sharethrough/amphtml,cory-work/amphtml,erwinmombay/amphtml,Gregable/amphtml,rsimha-amp/amphtml,cory-work/amphtml,mhc-gh/amphtml,danielrozenberg/amphtml,adup-tech/amphtml,tlong2/amphtml,chaveznvg/amphtml,src-code/amphtml