Update 'Main-Installer.sh'

Main-Installer.sh

@@ -92,6 +92,7 @@ sed -i 's/PermitRootLogin yes/PermitRootLogin prohibit-password/g' /etc/ssh/sshd
 echo "root:$password" | chpasswd
 cd /tmp
 #mv /boot/grub/menu.lst /boot/grub/menu.lst.bck
+add-apt-repository -y ppa:certbot/certbot
 apt update
 apt upgrade -y
 apt dist-upgrade -y