app/views/notifier/feedback.html.erb
<!DOCTYPE html>
<html>
<head>
<meta content='text/html; charset=UTF-8' http-equiv='Content-Type' />
</head>
<body>
<p>
Name: <%=@name%>
</p>
<p>
Email: <%=@email%>
</p>
<p>
Location: <%=@location%>
</p>
<p>
<br /><strong>Feedback:</strong>
<%=simple_format(@comment)%>
</p>
</body>
</html>