How to set a character limit for a Ruby on Rails RSS feeds

<body> <center>Sorry you do not have frames enabled. Here is the link of the tutorial:<br> <a href="hhttp://www.mycreativecollective.com/how-to-set-a-character-limit-for-a-ruby-on-rails-rss-feeds">hhttp://www.mycreativecollective.com/how-to-set-a-character-limit-for-a-ruby-on-rails-rss-feeds</a></center> </body>