title: https://rubygems.org/ is not a URI
body: <p>While trying to add any URL to gem sources, I find that this URL is not a URI. For example
  when I execute </p>
  
  <pre><code>gem sources -a https://rubygems.org
  </code></pre>
  
  <p>It tells me that </p>
  
  <blockquote>
    <p><a href="https://rubygems.org" rel="nofollow">https://rubygems.org</a> is not a URI</p>
  </blockquote>
  
  <p>Any help is appreciated</p>