title: just capture the text and remove the email with a regex
body: <p>I'm trying to make a regex that removes me in my text <code>email: toto@toto.com.</code></p>
  
  <p><strong>example:</strong> <code>I ​​request information on your project email: toto@free.fr</code> <br/>
  So I did this that captures me "email: toto@toto.com"<br/></p>
  
  <pre><code>message ="I ​​request information on your project email. toto@free.fr"
  message.gsub!("/(email: [-a-z0-9_+\.]+\@([-a-z0-9]+\.)+[a-z0-9]{2,4}$)/i")
  </code></pre>
  
  <p>it returns me nothing, and I wish there was just in the message text.</p>
  
  <p>thanks</p>