title: How to "crawl" only the root URL with Anemone?
body: <p>In the example below I would like anemone to only execute on the root URL (example.com). I am unsure if I should apply the on_page_like method and if so what pattern I would need.</p>
  
  <pre><code>  require 'anemone'
      Anemone.crawl("http://www.example.com/") do |anemone|
        anemone.on_pages_like(???) do |page|
          # some code to execute
        end
      end
  </code></pre>