app/views/shared/_message_of_the_day.html.erb
<% if ENV['MOTD'].present? %>
<div class="message-of-the-day">
<div class="js-flash-container">
<div class="flash flash-full flash-notice">
<div class="container-lg">
<p class="text-gray"><%= ENV['MOTD'].html_safe %></p>
</div>
</div>
</div>
</div>
<% end %>