app/views/layouts/_navigation.html.slim
nav.navbar.navbar-expand-md.navbar-dark.bg-primary
a.navbar-brand href=root_path Assignation
button.navbar-toggler aria-controls="navbarSupportedContent" aria-expanded="false" aria-label=("Toggle navigation") data-target="#navbarSupportedContent" data-toggle="collapse" type="button"
span.navbar-toggler-icon
#navbarSupportedContent.collapse.navbar-collapse
ul.navbar-nav.mr-auto= render 'layouts/navigation_links'