title: Rails 4, devise mailer using sendgrid template
body: <p>I'm trying to figure out how to use Rails 4, so that my devise emails can be sent using Sendgrid templates.</p>
  
  <p>I'm making my first template in Sendgrid.</p>
  
  <p>I can't see how to give links a name. The insert link button on the sendgrid templates page lets you select whether the link is a URL or an email. I picked URL. Then it has one option to complete the https: address. I want to give that address a masked name (i.e. 'Schedule' - which his the link to the https schedule url).</p>
  
  <p>How do I do this in Sendgrid template?</p>
  
  <p>Also, I have a link to devise confirmation token as:</p>
  
  <pre><code>&lt;%= link_to 'Confirm account', confirmation_url(@resource, confirmation_token: @token) %&gt;
  </code></pre>
  
  <p>How do I give that token to Sendgrid in a sendgrid email template?</p>