title: Angular2 ng-template documentation and usage
body: <p>I updated my project to the latest angular2 4.0.0-rc.5 and upon building it spits a lot of warnings like this:</p>
  
  <pre><code>Template parse warnings:
  The &lt;template&gt; element is deprecated. Use &lt;ng-template&gt; instead ("_newGroupReward.group.description}}
  </code></pre>
  
  <p>My question is - what is  and where can I find info about it and how to use it ? I have been googling however the only doc I could find is about the stable 2.4.x versions ( <a href="https://angular.io/docs/ts/latest/api/" rel="noreferrer">official docs</a> ).</p>
  
  <p>Best regards</p>