legendary-doc-site/apps/content/lib/content_web/templates/posts/comments.html.eex

<div class="ui feed">
  <%= Enum.map(Content.Comments.children(@parent_id, @post.comments), fn comment -> %>
    <div class="event">
      <div class="label">
        <img src="<%= comment.author_email |> gravatar_url_for_email %>" />
      </div>
      <div class="content">
        <div class="summary">
          <span class="user">
            <%= comment.author  || "Anonymous" %>
          </span>
          <div class="date">
            <%= comment.date |> Timex.format!("%F", :strftime) %>
          </div>
        </div>
        <div class="extra text">
          <%= sanitize comment.content |> auto_paragraph_tags |> elem(1) |> IO.iodata_to_binary() %>
        </div>
      </div>
    </div>
  <% end) %>
</div>