Fix the Terminal Profile instructions for Ubuntu
Remove setup that's in the class1 setup instructions
Improve class2 exercises
Fix a typo with class 2 exercise 4
Add specs for class 2 exercises
Fix another typo with class 2 exercise 4
Fix a type with class 2 exercise 1
Fix typos with class 2 exercise 1 and 2
Switch the guide to use single-quoted strings by default
Fix typo with class 2 exercise 1 spec
Improve specs for class 2 exercise 4
Improve specs for class 2 exercise 5
Improve specs for class 2 exercise 6
Fix rubocop
Ignore .DS_Store
Merge branch 'master' of https://github.com/codefellows/sea-c21-ruby
submitting homework for class2