Updated our KMM documentation

First addition: what is the difference between DispathchQueue..sync{} and DispathchQueue..async{}

We explained with code examples when it is possible to use sync call in the DispatchQueue function and when it is not.

Link to material: Dispatch Queue

The second addition: what is the Dagger 2 with examples

This is a library that provides dependencies between modules. We have shown what its essence is with diagrams, and explained a few lines of code.

Link to material: Dagger