update comment on batch usage
update comment on batch usage

steveyen/cbft,couchbaselabs/cbft,nimishzynga/cbgt,couchbaselabs/cbft,nimishzynga/cbgt,couchbaselabs/cbgt,steveyen/cbft,couchbaselabs/cbft,couchbaselabs/cbgt,steveyen/cbft,couchbaselabs/cbft,nimishzynga/cbgt,steveyen/cbft,couchbaselabs/cbgt,couchbaselabs/cbgt,steveyen/cbft,nimishzynga/cbgt