Add AdGuard to the list of Adopters (#2212)
Add AdGuard to the list of Adopters (#2212)


yongtang/coredns,miekg/coredns,jremond/coredns,chrisohaver/coredns,coredns/coredns,ii/coredns,jremond/coredns,miekg/coredns,johnbelamaric/coredns,johnbelamaric/coredns,ii/coredns