test

syncing github
added an author

removed white spaces, removed test comment and added myself as an author
difficulty and window set up

added difficulty selection and sets up the main window.
countdown timer

runs in shell starts with user input so if you put 60 it will do
01:00
00:59
00:58

and so on
File renamed

Renamed countdown 002 to countdown 001 so I can merge the branches
Added Files

Files added