Install specific version doc update
Install specific version doc update

This patch updates the documentation for installing a specific version
of REX-Ray.

emccode/rexray,codedellemc/rexray,emccode/rexray,oppodeldoc/rexray,oppodeldoc/rexray,oppodeldoc/rexray,codedellemc/rexray,codedellemc/rexray,oppodeldoc/rexray,cduchesne/rexray,thecodeteam/rexray,codedellemc/rexray,thecodeteam/rexray,akutz/rexray,codedellemc/rexray,akutz/rexray,cduchesne/rexray,thecodeteam/rexray,cduchesne/rexray,akutz/rexray,thecodeteam/rexray,thecodeteam/rexray,oppodeldoc/rexray,emccode/rexray,akutz/rexray,akutz/rexray,cduchesne/rexray,oppodeldoc/rexray,akutz/rexray,cduchesne/rexray,emccode/rexray,thecodeteam/rexray,cduchesne/rexray,codedellemc/rexray