House keeping

File name changes:
  checkers.hpp -> Board.hpp
  README -> README.md

Changed README to markdown and added some markup.

Added comments to Board.hpp explaining MoveFold and Move.
Merge branch 'master' of https://github.com/nothingisbad/robotics-checkers

Conflicts:
	Board.hpp
	README
	movement.hpp
House keeping

Merged prior commits with the name changes