anchor.diff:  
   This section describes the required configurations for achieving a zero downtime deployment.
   
  -####Application instances####
  +####Application Instances####
   
   Deploy at least two instances of every application.
   
  
positive.code: 
  <p class="note"><strong>Note</strong>: Data services may have single points of failure depending on their configuration.</p>
  
  ### <a id='processes'></a>Scalable processes ###
  
  You can think of components that support multiple instances as scalable processes.
  If you are already scaling the number of instances of such components to increase platform capacity, you need to scale further to achieve the redundancy required for high availability.
  
negative.code: 
  <%= image_tag("scale_cf.png", :height => "450px", :width => "475px") %>
  
  ### <a id='tradeoffs'></a>Trade-offs and Benefits ###
  
  The nature of a particular application should determine whether you scale vertically or horizontally.
  
  