anchor.diff:  
   === Running the server
   
  -Now having defined the simple, hello world handler, it is time to run it. To do it,
  -import the `run-server` function from `catacumba.core` ns and execute it with
  -handler as first parameter:
  +Having defined the simple, hello world handler, it's time to run it. To do this,
  +import the `run-server` function from the `catacumba.core` ns and execute it with
  +the handler as the first parameter:
   
   [source, clojure]
   ----
  
positive.code: 
  === First handler
  
  The handler consists of a function that accepts a "context" as first parameter and
  returns something renderable. Let see an example:
  
  [source, clojure]
  ----
  
negative.code:   "Hello World")
  ----
  
  This handler may look very familiar if you have used ring previously. The main
  difference is that it receives a context object instead of a request object.
  Additionally it may return a string directly.
  
  