Improve comments for letsencrypt-auto
Improve comments for letsencrypt-auto

DavidGarciaCat/letsencrypt,kuba/letsencrypt,twstrike/le_for_patching,thanatos/lets-encrypt-preview,DavidGarciaCat/letsencrypt,brentdax/letsencrypt,thanatos/lets-encrypt-preview,mitnk/letsencrypt,mitnk/letsencrypt,mrb/letsencrypt,brentdax/letsencrypt,jtl999/certbot,VladimirTyrin/letsencrypt,bsmr-misc-forks/letsencrypt,sjerdo/letsencrypt,letsencrypt/letsencrypt,mrb/letsencrypt,xgin/letsencrypt,piru/letsencrypt,twstrike/le_for_patching,bsmr-misc-forks/letsencrypt,goofwear/letsencrypt,kuba/letsencrypt,lbeltrame/letsencrypt,wteiken/letsencrypt,TheBoegl/letsencrypt,piru/letsencrypt,stweil/letsencrypt,dietsche/letsencrypt,sjerdo/letsencrypt,lmcro/letsencrypt,xgin/letsencrypt,goofwear/letsencrypt,Sveder/letsencrypt,wteiken/letsencrypt,martindale/letsencrypt,jtl999/certbot,jsha/letsencrypt,lmcro/letsencrypt,stweil/letsencrypt,lbeltrame/letsencrypt,Sveder/letsencrypt,martindale/letsencrypt,VladimirTyrin/letsencrypt,dietsche/letsencrypt,TheBoegl/letsencrypt,letsencrypt/letsencrypt,jsha/letsencrypt