Adding some spec to validate that methods still work
Merge pull request #11 from lewagon/01-03-03-spec-for-beautify

Adding some spec to validate that methods still work
Adding some spec to validate that hop_hop_hop still works
Merge branch 'master' of github.com:lewagon/promo-3-challenges
Merge pull request #12 from lewagon/01-03-04-cleaning-mess-solution-and-spec

Adding some spec to validate that hop_hop_hop still works
Merge branch 'master' of github.com:lewagon/promo-3-challenges
 interface exercice finished