Fix wrong indentation in sample UI definition
Fix wrong indentation in sample UI definition

Change-Id: I5729020d5addb5e34fa3d3cfd7bf75a64d62bd7d

sajuptpm/murano,DavidPurcell/murano_temp,sajuptpm/murano,olivierlemasle/murano,ativelkov/murano-api,DavidPurcell/murano_temp,chenyujie/hybrid-murano,satish-avninetworks/murano,NeCTAR-RC/murano,DavidPurcell/murano_temp,satish-avninetworks/murano,openstack/murano,satish-avninetworks/murano,NeCTAR-RC/murano,ativelkov/murano-api,sergmelikyan/murano,olivierlemasle/murano,openstack/murano,NeCTAR-RC/murano,chenyujie/hybrid-murano,satish-avninetworks/murano,olivierlemasle/murano,telefonicaid/murano,telefonicaid/murano,sergmelikyan/murano,olivierlemasle/murano,DavidPurcell/murano_temp,NeCTAR-RC/murano