Improve the hash style guide
Improve the hash style guide
Improve class7 exercises
Improve class7 exercises
Improve class7 exercises
Improve class7 exercises
Improve class7 exercises
Improve class7 exercises
Improve class7 exercises
Improve class7 exercises
Improve class7 exercises
Improve class7 exercises
Merge branch 'master' of https://github.com/codefellows/sea-c21-ruby
class 4 spec fix