Implement show route

app/models/exercise_collection.rb

@@ -2,4 +2,8 @@ class ExerciseCollection < ActiveRecord::Base
 
   has_and_belongs_to_many :exercises
 
+  def to_s
+    "#{I18n.t('activerecord.models.exercise_collection.one')}: #{name} (#{id})"
+  end
+
 end

app/views/exercise_collections/show.html.slim

@@ -1 +1,11 @@
-h1 = 'ExerciseCollection#show'
+h1
+  = @exercise_collection
+  = render('shared/edit_button', object: @exercise_collection)
+
+= row(label: 'exercise_collections.name', value: @exercise_collection.name)
+= row(label: 'exercise_collections.updated_at', value: @exercise_collection.updated_at)
+
+h4 = t('activerecord.attributes.exercise_collections.exercises')
+ul.list-unstyled
+  - @exercise_collection.exercises.sort_by{|c| c.title}.each do |exercise|
+    li = exercise