Blog creation in Ruby On Rails

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Hello.
I use Rails 3.
I installed 'refinerycms-blog':
1.) In a Gemfile: gem 'refinerycms-blog', '~> 1.0.rc15' 2.) bundle install
3.) rails generate refinery_blog 4.) rake db:migrate It works very good, but
if I go to any post page - I see HTML tags and content.
I deployed my project to heroku, where you can see it.
http://russlteam.heroku.com/blog/ You can see this problem in a each post in
a blog.
For example:
http://localhost:3000/blog/mysql-for-beginners

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