anchor.diff:  found it useful for integrate catacumba with other scenarios that it is not
   initially designed to work.
   
  -This is the aspect ot the cps style handler:
  +This is the aspect of the cps style handler:
   
   [source, clojure]
   ----
   (defn my-cps-handler
  -  "Some usefull docstring."
  +  "Some useful docstring."
     {:handler-type :catacumba/cps}
     [context callback]
     (future
  
positive.code: ----
  
  One of the advantages of using `CompletableFuture` abstraction with _promesa_
  library is because it exposes additional sugar syntax that help workin with
  asynchronous flows in more pleasant way.
  
  Let see an example:
  
negative.code:                [:error my-error-handler-for-this-prefix]
                 [:any authentication-handler]
                 [:get "users" users-handler]
                 [:put "users" check-permissions-handler update-users-handler]]
                [:prefix "admin"
                 [:error my-error-handler-for-this-other-prefix]
                 [:get "dashboard" my-dashboard-handler]]]))
  