Cleanup README.
Cleanup README.

lavalamp/heapster,saiwl/heapster,lavalamp/heapster,jackzampolin/heapster,burmanm/heapster,vicki-c/heapster,bruceauyeung/heapster,luxas/heapster,taimir/heapster,andyxning/heapster,a-robinson/heapster,bruceauyeung/heapster,skytap/heapster,shilpamayanna/heapster,saiwl/heapster,vishh/heapster-1,aegixx/heapster,adfin/statster,a-robinson/heapster,fzu-huang/heapster,burmanm/heapster,jimmidyson/heapster,dalanlan/heapster,fzu-huang/heapster,saad-ali/heapster,jackzampolin/heapster,mdshuai/heapster,piosz/heapster,adfin/statster,huangyuqi/heapster,bluebreezecf/heapster,skytap/heapster,whuwxl/heapster,relh/heapster,vicki-c/heapster,afein/heapster,johanneswuerbach/heapster,digideskio/heapster,liubog2008/heapster,vishh/heapster-1,whuwxl/heapster,piosz/heapster,relh/heapster,AlmogBaku/heapster,jimmidyson/heapster,liuhewei/heapster,jszczepkowski/heapster,wulonghui/heapster,nlamirault/heapster,mwringe/heapster,Huawei-PaaS/heapster,jszczepkowski/heapster,shilpamayanna/heapster,titilambert/heapster,huangyuqi/heapster,mwielgus/heapster,dalanlan/heapster,jfoy/heapster,mwringe/heapster,ravihansa3000/heapster,afein/heapster,thucatebay/heapster,thucatebay/heapster,naxhh/heapster,krzyzacy/heapster,andyxning/heapster,titilambert/heapster,luxas/heapster,mwielgus/heapster,Stackdriver/heapster,taimir/heapster,bluebreezecf/heapster,ravihansa3000/heapster,aegixx/heapster,mdshuai/heapster,johanneswuerbach/heapster,wulonghui/heapster,naxhh/heapster,liubog2008/heapster,krzyzacy/heapster,saad-ali/heapster,digideskio/heapster,liuhewei/heapster,nlamirault/heapster,AlmogBaku/heapster,Huawei-PaaS/heapster,Stackdriver/heapster,jfoy/heapster,apeeyush/heapster,apeeyush/heapster