Update README.md

[idarlund]

this command will use the data on the hosts file and check them both. the " && echo ''" is needed because the app does not send a newline. so to make it pretty, we need to do that echo. this should instead be fixed in the .jar file ;)

[mglantz]

Hehe, I much approve of your improvement, but in this case, I'm afraid that scripting this will cause this exercise to become a bit of black magic for people who are not used to scripting. Doing it manually makes it more easy for people to understand what they are doing. Makes sense?

[idarlund]

Makes sense :)