CONTRIBUTING.md: sass --unix-newlines
fixed typo in contributing doc
Merge pull request #258 from harimohanraj89/documentation

CONTRIBUTING.md typo fix
Merge pull request #234 from sigod/contributing

CONTRIBUTING.md: sass --unix-newlines
added Putin pictures for tiles
removed numbers
Merge branch 'gh-pages' of https://github.com/BlazeZexal/2048 into gh-pages