title: Facebook Messenger API:how to break line in a message
body: <p>In Facebook Messenger chat,we can break a line by press "SHIFT+ENTER".<br>
  So how to break line by Facebook Graph API(Messenger API).<br>
  I've seen in a few answers that the Graph API accepts <code>&lt;center&gt;&lt;/center&gt;</code> instead of <code>&lt;br&gt;</code> and some other parts of their API seem to accept <code>\r\n</code>. </p>
  
  <p>Is there currently any way of sending a line break and if there is where it it documented?</p>