title: Add line break to tooltip generated by tooltipster plugin
body: <p>I've recently tried using a new plugin for tooltips because I like the functionality. However I have come into an issue, I do not know how to add new lines so my tooltips don't just run across the whole page. I tried some of the solutions I read on here such as escape characters but they don't work.</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false">
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  <pre class="snippet-code-js lang-js prettyprint-override"><code>$(document).ready(function () {  
   $('.tooltip-custom').tooltipster({
    theme: 'tooltipster-noir'
   });
  });</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;link href="https://cdnjs.cloudflare.com/ajax/libs/tooltipster/3.0.5/css/tooltipster.css" rel="stylesheet"/&gt;
  &lt;link href="https://cdnjs.cloudflare.com/ajax/libs/tooltipster/3.0.5/css/themes/tooltipster-noir.css" rel="stylesheet"/&gt;
  
  &lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"&gt;&lt;/script&gt;
  &lt;script src="https://cdnjs.cloudflare.com/ajax/libs/tooltipster/3.0.5/js/jquery.tooltipster.js"&gt;&lt;/script&gt;
  
  &lt;a href="#" class="tooltip-custom" title="This is my very long run on tooltip that just doesnt seem to want to end or split lines. Ok maybe I am overreacting but still. I want to be able to start a new line whenever I please!"&gt;&lt;h1&gt;Hello!&lt;/h1&gt;&lt;/a&gt;</code></pre>
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  </p>