Reading Time indication for Post in Blogger

At post : 

Reading time: <span class="eta"></span> (<span class="words"></span> words) 

 

In the footer: 

 

 <script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
<script src="http://michael-lynch.github.io/reading-time/js/readingTime.min.js"></script>
      
        <script>
      
            $(function() {
          
                $('#Blog1').readingTime({
                    wordCountTarget: '.words',
                });
              
            });
      
        </script>

 

 
Source: https://github.com/michael-lynch/reading-time