FEAT: added Unix specific steps for running the JNIdemo app.
FEAT: added Unix specific steps for running the JNIdemo app.

NikolayShubenkovProgSchool/red,red-eco/red,vehar/red,red-eco/red,NikolayShubenkovProgSchool/red,rheber/red,rheber/red,iArnold/red,iArnold/red,vehar/red