title: open link in new tab with github markdown using target="_blank"
body: <p>Is there a way to let a Link, written in githubs markdown, open in a new tab?
  All posts I have found related to this suggests to use HTML and <code>target="_blank"</code>, which is fine with me, but that doesn't work.
  For example this link:</p>
  
  <pre><code>&lt;a href="http://stackoverflow.com" target="_blank"&gt;Go&lt;/a&gt;
  </code></pre>
  
  <p>Does not open in a new tab.
  I'm no interested in replies for all kind of different markdown syntaxes, but only in a solution that will work when I write my markdown on github. </p>