title: Unregistered Sublime Text
body: <p>I downloaded Sublime Text 3 on my MacBook Air; however, the text editor continues to have <strong>UNREGISTERED</strong> on the top right hand corner of the tab. As a result, I presume, I cannot save anything in the said text editor. How do I fix this? </p>
  
  <p><a href="https://i.stack.imgur.com/wPhvQ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/wPhvQ.png" alt="Sublime Window"></a></p>