<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
  <link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.css" />
  <link rel="stylesheet" href="../dist/summernote-bs4.css">
  <title>summernote</title>

  <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js"></script> 
  <script src="//cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.js"></script>
  <script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.js"></script>
  <script type="text/javascript" src="../dist/summernote-bs4.js"></script>

  <script type="text/javascript">
    $(document).ready(function() {
      $('.summernote').summernote({
        height: 300,
        tabsize: 2,
        styleTags: [
          'p',
          {title: 'Striked', tag: 'p', className: 'striked', value: 'p'},
          {title: 'Blockquote', tag: 'blockquote', className: 'blockquote', value: 'blockquote'},
          {title: 'Big Title', tag: 'h1', className: 'bigtitle', value: 'h1'}
        ]
      });
    });
  </script>
  <style>
  .bigtitle {
    font-size: 5em;
  }
  .striked {
    text-decoration: line-through;
  }
  </style>
</head>
<body>
  <div class="container">
    <h5>
      <i class="note-icon-summernote"></i> Summernote
      <span class="badge badge-pill badge-info">Bootstrap v4.1.3</span>
    </h5>
    <div class="summernote"></div>
  </div>
</body>
</html>

Add an example for custom styletags
Add an example for custom styletags
