anchor.diff:        <div class="col-sm-6 col-md-6 col-lg-3">
           <div class="tile">
             <figure>
  -            <img src="/assets/images/go.cd_join-community.png" alt="" />
  +            <%= image_tag "go.cd_join-community.png", {:alt => ""} %>
             </figure>
   
             <h3>Join Community Discussions</h3>
  
positive.code:       <div class="col-sm-6 col-md-6 col-lg-3">
          <div class="tile">
            <figure>
              <img src="/assets/images/go.cd_test-gocd.png" alt="" />
            </figure>
  
            <h3>Test GoCD</h3>
  
negative.code:       <div class="col-sm-6 col-md-6 col-lg-3">
          <div class="tile last">
            <figure>
              <%= image_tag "go.cd_code.png", {:alt => ""} %>
            </figure>
  
            <h3>Code for GoCD</h3>
  