Update Introduction & provide more examples

[benzht]

The introduction example no longer works after merging 'external state'.

Furthermore, I would really like to see examples passing arguments to actions - could be in the intro, but could also be an example FSM in code. Because from the parameter lists and the Java doc it is very difficult to figure out how to do this. See, for instance, a question on StackOverflow. I do hope that there is a simpler way then the one offered in the answer there :-).

Maybe, my real question is: with the exernal_state_storage merged, where is the callTimer of the Actions implemented and where its state? How can I run multiple instances of this state machine in parallel, each with its own callTimer?

[samskiter]

👍

[Ktar5]

Definitely do need to update the readme as well as the examples