title: how to create tags with characters in a text editor
body: <p>I was wondering how I can do to replace characters within a text with javascript.</p>
  
  <p>example:
  Google is a &#42;search engine&#42;.</p>
  
  <p>result:
  Google is a <strong>search engine</strong>.</p>
  
  <p>sites like Google+ do it in posts. Thank you!</p>