created spec file
added cell file to library
testing if cell is empty
writing the second test
testing cell.content
third test
testing ship.hit
getting confused about water
testing cell.content = water
added another test about content
Update README.md
testing cell.hit
Merge pull request #1 from babelberry/ship

Battleships: created ship class
adding hit and miss
testing cell.hit
Merge pull request #3 from babelberry/ship

Battleship: updated ship class with bangs
more cell stuff
added ship and cell arrays, all tests passed
Merge pull request #2 from babelberry/battleships

added ship and cell arrays, all tests passed
added coordinates method