Small doc update
Small doc update

hugozhu/dns,cloudflare/dns,tempbottle/dns,Git-Host/dns,curtiszimmerman/dns,letsencrypt/dns,jmhodges/dns,jdef/dns,benbearchen/dns,bragr/dns,AlexCheong/dns,ym/go-dns,tsenart/dns,ErikDubbelboer/dns,josephyzhou/dns,skyportsystems/dns,miekg/dns,michaelharo/dns,modulexcite/dns,skynet/dns,flebarbe/dns,rolandshoemaker/dns,ezoic/dns,bboreham/dns,janstk/dns,Psiphon-Inc/dns,asergeyev/dns