Fix sink docs
Fix sink docs

AlmogBaku/heapster,piosz/heapster,mwringe/heapster,AlmogBaku/heapster,liubog2008/heapster,huangyuqi/heapster,taimir/heapster,bruceauyeung/heapster,andyxning/heapster,aegixx/heapster,burmanm/heapster,krzyzacy/heapster,luxas/heapster,aegixx/heapster,jackzampolin/heapster,krzyzacy/heapster,whuwxl/heapster,liubog2008/heapster,Stackdriver/heapster,andyxning/heapster,burmanm/heapster,taimir/heapster,adfin/statster,saiwl/heapster,whuwxl/heapster,jackzampolin/heapster,mwringe/heapster,johanneswuerbach/heapster,huangyuqi/heapster,luxas/heapster,johanneswuerbach/heapster,piosz/heapster,bluebreezecf/heapster,adfin/statster,bluebreezecf/heapster,saiwl/heapster,Stackdriver/heapster,bruceauyeung/heapster