app/views/user_mailer/forgot_password.html.erb
<!DOCTYPE html>
<html>
<head>
<meta content='text/html; charset=UTF-8' http-equiv='Content-Type' />
</head>
<body>
<h1>Need help logging in?</h1>
<p>
A password reset was requested for your user account.<br>
<br>
To reset your MetaCorp password, simply click on the
following link and follow the instructions:<br>
<br>
<%= link_to "Click here to reset your password", @url %><br>
<br>
If you don't want to change your password, you can ignore this email.
</p>
<p>Thanks, and have a great day!</p>
</body>
</html>