Add install script

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

lib/scripts/add-host.sh

@@ -28,6 +28,5 @@ sed -i "/userKnownHostsFile = lib.strings.concatStringsSep \" \" \[/a\        ..
 "$(dirname "$0")/update-keys.sh" "$2"
 
 echo "Host ${HOST} has been successfully added."
-echo "Please generate SSH key pairs for any users that need to connect to user@host."
-echo "Use the following command:"
+echo "You can generate SSH key pairs for any users that need to connect to user@host using the following command:"
 echo "ssh-keygen -t ed25519 -f ~/.ssh/id_ed25519_${HOST}_<user>"