[aggregate] added check "aggregate" to ref docs
[aggregate] added check "aggregate" to ref docs

mahata/sensu-docs,opinionlab/sensu-docs,dpetzel/sensu-docs,18672222629/sensu-docs,mahata/sensu-docs,solarkennedy/sensu-docs,dpetzel/sensu-docs,mahata/sensu-docs,opinionlab/sensu-docs,yonglehou/sensu-docs,yonglehou/sensu-docs,danf22/sensu-docs,dpetzel/sensu-docs,18672222629/sensu-docs,solarkennedy/sensu-docs,danf22/sensu-docs,yonglehou/sensu-docs,solarkennedy/sensu-docs,dpetzel/sensu-docs,opinionlab/sensu-docs,18672222629/sensu-docs,solarkennedy/sensu-docs,mahata/sensu-docs,palourde/sensu-docs,yonglehou/sensu-docs,18672222629/sensu-docs,opinionlab/sensu-docs,danf22/sensu-docs,danf22/sensu-docs,palourde/sensu-docs