Add a separate page which explains ev3dev

[WasabiFan]

From ev3dev/ev3dev#734.

[WasabiFan]

From ev3dev/ev3dev#783:

@WasabiFan:

what if we created a documentation page on "ev3dev fundamentals"? Such a page would explain the relationship between images, kernels and "ev3dev versions"; essentials of packages; basic concepts of using sensors/motors; and the capabilities that the EV3 provides, among other things. I think that would be useful as a step in the "getting started" guide, and would likely help any ev3dev user, beginner or advanced.

@JorgePe:

I like the idea of an "ev3dev fundamentals" page as also a "what is ev3dev". I know that there are already many pages trying to achieve that same purpose but there isn't a sort of "ev3dev for beginners" guide offering a good, complete, from-start-to-the-end tutorial.

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I think we're targeting two independent pages: one which explains what ev3dev is to someone who is considering using it, and one which explains the technical fundamentals in moderately more detail. Both would still target beginners.

[JorgePe]

I agree.
I'm not a fluent English writer but If you think I can help please count with me.

[WasabiFan]

@JorgePe Help is always appreciated! If you don't feel you could write a whole page, you could create a bulleted outline (and post it here) which lays out the information that should be included.