update guide document
update guide document

Correct the guide for creating a cluster template

Change-Id: I71d1838f54bf3ccc5788af2414d54f3877e214b1

matips/iosr-2015,keedio/sahara,esikachev/sahara-backup,citrix-openstack-build/sahara,henaras/sahara,xme1226/sahara,egafford/sahara,ekasitk/sahara,tellesnobrega/storm_plugin,citrix-openstack-build/sahara,zhujzhuo/Sahara,crobby/sahara,matips/iosr-2015,esikachev/scenario,citrix-openstack-build/sahara,mapr/sahara,bigfootproject/sahara,mapr/sahara,bigfootproject/sahara,keedio/sahara,matips/iosr-2015,zhujzhuo/Sahara,redhat-openstack/sahara,esikachev/sahara-backup,esikachev/scenario,redhat-openstack/sahara,redhat-openstack/sahara,mapr/sahara,tellesnobrega/sahara,zhujzhuo/Sahara,crobby/sahara,xme1226/sahara,crobby/sahara,henaras/sahara,openstack/sahara,xme1226/sahara,henaras/sahara,zhangjunli177/sahara,keedio/sahara,esikachev/scenario,openstack/sahara,tellesnobrega/storm_plugin,ekasitk/sahara,tellesnobrega/sahara,egafford/sahara,ekasitk/sahara,bigfootproject/sahara,zhangjunli177/sahara,zhangjunli177/sahara,esikachev/sahara-backup,tellesnobrega/storm_plugin