(fixes #3009)change description of install commands in setup guide.
(fixes #3009)change description of install commands in setup guide.

tejima/OP3PKG,tejima/OP3PKG,openpne/OpenPNE3,nise-nabe/ppcon-sns,openpne/OpenPNE3,openpne/OpenPNE3,nise-nabe/ppcon-sns,openpne/OpenPNE3