More specific instructions

src/freedombone-prep

 echo 'Enter the command "exit" a couple of times to get back to your main system' >> /tmp/freedombone_motd
 echo 'then log back in as the user you just created with:' >> /tmp/freedombone_motd
 echo '' >> /tmp/freedombone_motd
-echo '    ssh [username]@$BBB_FIXED_IP_ADDRESS' >> /tmp/freedombone_motd
+echo "    ssh [username]@$BBB_FIXED_IP_ADDRESS" >> /tmp/freedombone_motd
 echo '' >> /tmp/freedombone_motd
 echo 'and use the "su" command to become the root user again.' >> /tmp/freedombone_motd
 echo '' >> /tmp/freedombone_motd