gem 'redcarpet'
  gem 'rouge' // for themes

module MarkdownHelper
 require 'redcarpet'
 require 'rouge'
 require 'rouge/plugins/redcarpet'

 class HTML < Redcarpet::Render::HTML
   include Rouge::Plugins::Redcarpet
 end

 def markdown(text)
   render_options = {
     # filer_html: true,
     hard_wrap: true,
     link_attributes: { rel: 'nofollow' },
     prettify: true
   }
   #renderer = Redcarpet::Render::HTML.new(render_options)
   renderer = HTML.new(render_options)
   extras = {
     no_intra_emphasis: true,
     tables: true, // support table
     fenced_code_blocks: true,
     autolink: true,
     disable_indented_code_blocks: true,
     strikethrough: true,
     lax_spacing: true,
     space_after_headers: true,
     superscript: true,
     underline: true,
     highlight: true,
     quote: true,
     footnotes: true,
   }

    markdown = Redcarpet::Markdown.new(renderer, extras)
    raw markdown.render(text)
  end
end

  include MarkdownHelper