title: how to document flask webapp
body: <p>I have to document a webapp I've developed with Python and the Flask framework. The documentation will contain the different features that the app offers to each role that may work with it. </p>
  
  <p>I was thinking to include some wiki engine inside the app, because I need a easy way to improve the docs as the app evolves. What is the more natural way to achieve this requirement?</p>