Create a sections of Behat real-world examples

[gabiudrescu]

either you study the work of others or you follow an exercise to craft your own thing, IMO, the best way to learn something is by example.

that's why I started to work on a simple application that says "hello" and used Behat + PHPSpec to handle the behavior description phase and class interaction.

now, I should find a way to integrate this into my repository of Behat knowledge: https://github.com/gabiudrescu/greeter20