anchor.diff:          <% else %>
             <p><i class="fa fa-gear fa-lg"></i> not linked to PivotalTracker</p>
           <% end %>
  +        
  +        <% if user_signed_in? && current_user.following?(@project) %>
  +            <%= custom_css_btn 'leave project', 'fa fa-star', unfollow_project_path(@project) %>
  +          <% else %>
  +          <div class="btn-join">
  +            <%= custom_css_btn 'join project', 'fa fa-star-o', follow_project_path(@project) %>
  +          </div>
  +        <% end %>
         </div>
   
         <div><%= render 'members_list', members: @members %></div>
  
positive.code: </div>
  
  <div class="project-main">
    <div class="row no-gutter">
      <div class="project-main col-md-8">
        <ul class="nav nav-tabs">
          <li id="pitch" class="active">
  
negative.code:       </div>
      </div>
      <div class="project-aside col-md-4">
        <div class="project-highlight-box">
          <div class="doc-status-text">
            Status: <%= @project.status.upcase %><br>
            <%= "Created #{time_ago_in_words(@project.created_at)} ago" %> by <%= @project.user.display_name %>
          </div>
  
          <% if @project.github_url.present? %>
            <p><i class="fa fa-github-alt fa-lg"></i>
  