Update README.md
Add rakefile
Merge branch 'master' of github.com:lewagon/promo-2-challenges
Adding rakefile
Adding rakefile
Adding rakefile
Exercice ajax wagon race
readme fix
Enhanced readme
Merge pull request #91 from lewagon/04/05-Ajax-wagon-race

04/05 ajax wagon race
Merge branch 'master' of github.com:lewagon/promo-2-challenges
added start button to ajax wagon race game