anchor.diff:  
   [source,clojure]
   ----
  -[funcool/promesa "0.4.0"]
  +[funcool/promesa "0.5.0"]
   ----
   
   
  
positive.code: = promesa - composable promise library for ClojureScript
  Andrey Antukh, <niwi@niwi.nz>
  0.4.0
  :toc: left
  :!numbered:
  :idseparator: -
  
negative.code: ----
  
  
  === Simple chaining
  
  It there different ways to compose/chain computations using promises. We will start
  with the basic: lineal way of chaining computations.
  