markdown

helper.rb

module ApplicationHelper

  def markdown(text, options = {} )
    options = [
      :hard_wrap => true, 
      :space_after_headers => true,
      :filter_html => true, 
      :autolink => true, 
      :no_intraemphasis => true, 
      :fenced_code => true, 
      :gh_blockcode => true,
      :safe_links_only => true,
      :xhtml => false,
      :no_images => true
    ]
    
    markdown = Redcarpet::Markdown.new(Redcarpet::Render::HTML,*options)
    markdown.render(text).html_safe
  end
  

end

nav.erb

<nav>
  	<ul class="grid">
			<li><%= link_to "Shops", shops_path %></li>
			<li><%= link_to "Books", books_path %></li>
			<li><%= link_to "Chapters", chapters_path %></li>
		</ul>
	</nav>