updating manual installation instructions
updating manual installation instructions

opentok/Opentok-Java-SDK,drahot/Opentok-Java-SDK,drahot/Opentok-Java-SDK,opentok/Opentok-Java-SDK,Kwasniewski/Opentok-Java-SDK,CamioCam/Opentok-Java-SDK,Kwasniewski/Opentok-Java-SDK,mukesh-kum/Opentok-Java-SDK,mukesh-kum/Opentok-Java-SDK,CamioCam/Opentok-Java-SDK