new VRE readme with information on backup-restore in dspace case (fix)
new VRE readme with information on backup-restore in dspace case (fix)

ibyron/e-science,VFoteinos/e-science,grnet/e-science,KPetsas/e-science,ibyron/e-science,grnet/e-science,KPetsas/e-science,ioannisstenos/e-science,ioannisstenos/e-science,VFoteinos/e-science,KPetsas/e-science,grnet/e-science,ibyron/e-science,grnet/e-science,ioannisstenos/e-science,KPetsas/e-science,VFoteinos/e-science,ibyron/e-science,ibyron/e-science,ioannisstenos/e-science,ioannisstenos/e-science,VFoteinos/e-science,VFoteinos/e-science,KPetsas/e-science,grnet/e-science