tree ef7f0ccd61cd46ea1f55cc942d0182c373fc597e
parent e2292d797199e39c4d05ef1ad4f9b34df9ebccc8
author Paulo Antonio Alvarez <pauloaalvarez@gmail.com> 1502851747 -0300
committer Paulo Antonio Alvarez <pauloaalvarez@gmail.com> 1502851747 -0300

Update README to explain the history of returned values

Gives some motivation as well as a simple example taken from the test
suite of fff.