Clean code
Create README.md
Clean code
Merge branch 'refactoring' of https://github.com/flulover/Bootcamp into refactoring
split tests.
Merge remote-tracking branch 'origin/refactoring'

Conflicts:
	SuperMarket/EmptyRatioRobot.cs
	SuperMarket/SmartRobot.cs
	SuperMarket/SuperMarket.csproj
	SuperMarketTest/SuperMarketTest.cs