Added threads usage example
Added threads usage example

dmitry42nd/trik-models,trikset/trik-models,dmitry42nd/trik-models,trikset/trik-models,RomanBelkov/trik-models,dmitry42nd/trik-models,trikset/trik-models,RomanBelkov/trik-models,trikset/trik-models,RomanBelkov/trik-models,dmitry42nd/trik-models