[V4RB] V4RB_Tutorial_2_en added

[Ruslan Zasukhin]

Hi V4RB developers,

To V4RB section of docs added new file of Tutorial.

It have now only one FIRST lesson.
But it is simple and good place to start.

It is much simpler of example from 1.x tutorial.

We will add more and more lessons of course.

Next week we plan to make analog tutorial for V4MD.

-- 
Best regards,

Ruslan Zasukhin
VP Engineering and New Technology
Paradigma Software, Inc

Valentina - Joining Worlds of Information
http://www.paradigmasoft.com

[I feel the need: the need for speed]