Fix coding standards in specs

spec/features/playlists/crud_spec.rb

@@ -8,10 +8,10 @@ feature 'Playlists CRUD' do
     visit playlists_path
 
     click_link playlist[:name]
-    fill_in 'Name', with: 'Rock'
+    fill_in 'Name', with: 'new playlist name'
     click_button 'Save'
 
     expect(current_path).to eq playlists_path
-    expect(page).to have_content 'Rock'
+    expect(page).to have_content 'new playlist name'
   end
 end