Added comment about installer.save()
Added comment about installer.save()

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