title: Laravel external URL issue
body: <p>I want to set external URL in some of my anchor tags but facing problem when URL is without http/https protocol. When URL is without these protocols URL become like following:</p>
  
  <pre><code>&lt;a target="_blank" href="www.usatoday.com/"&gt;&lt;/a&gt;
  </code></pre>
  
  <p>when I click on it or hover over it, it shows and redirect me to:
      <a href="http://localhost/event/www.usatoday.com" rel="noreferrer">http://localhost/event/www.usatoday.com</a></p>
  
  <p>I've tried following two ways in href but didn't worked:</p>
  
  <pre><code>{{url($eventSponsorsRow-&gt;sponsorUrl)}}
  {{ $eventSponsorsRow-&gt;sponsorUrl }}
  </code></pre>
  
  <p>instead of URL in href. Laravel 5.3</p>