added tls comments to config/plugins
added tls comments to config/plugins

sieutruc/qpsmtpd,smtpd/qpsmtpd,sieutruc/qpsmtpd,msimerson/qpsmtpd,priyadi/qpsmtpd,priyadi/qpsmtpd,sieutruc/qpsmtpd,salvis/qpsmtpd,msimerson/qpsmtpd,smtpd/qpsmtpd,priyadi/qpsmtpd,salvis/qpsmtpd