anchor.diff:  1:2:3:
   ----
   
  +[[if_section]]
   ===== If Section
   
   A basic control flow section.
  
positive.code: ===== With Section
  
  This section can be used to set the current context object.
  This could be useful to simplify the template structure.
  
  [source]
  ----
  {#with item.parent}
    {name}  <1>
  {/with}
  ----
  <1> The name will be resolved against the `item.parent`.
  
  It's also possible to specify an alias for the context object:
  
  [source]
  ----
  {#with item.parent as myParent}
    {myParent.name}
  {/with}
  ----
  
  [[include_helper]]
  ===== Include/Insert Sections
  
negative.code: <html>
     <body>
     {_foo}       <1>
     {  foo}      <2>
     {{foo}}      <3>
     {"foo":true} <4>
     </body>
  