Have custom navigation link open in new tab?

Site URL: https://www.nickdavid.co.uk/

Hi, I just recently followed this guide to add social icons to the top navigation bar.

https://christyprice.com/squarespace-tips-tricks/how-to-add-social-media-icons-to-squarespace-navigation

Using this code from fontawsome:

<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.7.2/css/all.css" integrity="sha384-fnmOCqbTlWIlj8LyTjo7mOUStjsKC4pOpQbqyi7RrhN7udi9RwhKkMHpvLbHG9Sr" crossorigin="anonymous">

With this link in navigation meny it worked out great to add the icons to the top menu navigation bar.. 

<i class="fab fa-instagram"></i>

But I was wondering if there was a way to have just the social icons in the top navigation field open in a new tab?

Thank you for the help.