Added KPI goal specified as absolute metric value

+ renamed example template to 'example.html'
+ added example on new KPI goal

Change-Id: I531dfe106bb19db868424db6a03dcb7cad7d9a30
Fix pasto for openstack-doc-tools

The module should be openstack-doc-tools

Change-Id: I41e63ca6865aa225bc01651c32f8a70568859594
Merge "Added KPI goal specified as absolute metric value"