Exercise canvas
Exercise base files with instructions
Fixed double quotes
Added price_of_product method so that we can test the content of store_items without directly comparing it to a specific data structure
First specs
cart specs
terminal interface tests
Correction et finalisation de l'énoncé.

A priori pas de test prévu pour cet exo (histoire de laisser plus de liberté aux élèves).
Merge pull request #81 from lewagon/oop-10

Correction et finalisation de l'énoncé.
Comment incomplete assignations so that files are valid
fixed all tests
Remove constant, made a test-local 'variable'
Merge pull request #80 from lewagon/new-ruby-exos

Ruby Shoppin Cart (Hashes/Arrays + Iteration)
Merge branch 'master' of github.com:lewagon/promo-2-challenges
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