app/views/job_postings/index.html.erb
<div class='content'>
<div class="masthead">
<div class="row">
<h2>Job Board</h2>
</div>
</div>
<div class="row">
<ul class="list-jobs">
<% @job_postings.each do |job| %>
<%= render partial: 'posting', locals: { job: job } %>
<% end %>
</ul>
</div>
</div>