Add RuboCop and Helix project config

lib/deck.rb

@@ -1,4 +1,4 @@
-require_relative "card"
+require_relative 'card'
 
 # Représente un paquet de cartes et gère son contenu.
 class Deck
@@ -6,8 +6,8 @@ class Deck
 
   def initialize
     @cards = []
-    values = ["7", "8", "9", "10", "ace", "jack", "queen", "king"]
-    suits = ["hearts", "diamonds", "clubs", "spades"]
+    values = %w[7 8 9 10 ace jack queen king]
+    suits = %w[hearts diamonds clubs spades]
 
     suits.each do |suit|
       values.each do |value|
@@ -26,4 +26,3 @@ class Deck
     @cards.pop
   end
 end
-