Cc jn add pizzerias

Pizzeria controller/model/table and views added and coverall badge added.
When you want multiple records you can use `create_list` instead of `create`:

```ruby
pizzerias = FactoryGirl.create_list(:pizzeria, 2)

visit pizzerias_path

pizzerias.each do |pizzeria|
  expect(page).to have_content(pizzeria.name)
end
```