NEWS: add v3.2.0
NEWS: add v3.2.0

Signed-off-by: Gyu-Ho Lee <3454051ee3341eb69bdf6fca40899cdad4d86496@gmail.com>

bdarnell/etcd,etcd-io/etcd,akauppi/etcd,armstrongli/etcd,coreos/etcd,xiang90/etcd,fanminshi/etcd,lorneli/etcd,heyitsanthony/etcd,vimalk78/etcd,a-robinson/etcd,mickep76/etcd,xiang90/etcd,etcd-io/etcd,sinsharat/etcd,dannysauer/etcd,sinsharat/etcd,glevand/coreos--etcd,mqliang/etcd,rnaveiras/etcd,ajityagaty/etcd,cockroachdb/etcd,mqliang/etcd,visheshnp/etcd,visheshnp/etcd,heyitsanthony/etcd,dannysauer/etcd,li-ang/etcd,ajityagaty/etcd,bluebreezecf/etcd,sebrandon1/etcd,whuwxl/etcd,sebrandon1/etcd,rnaveiras/etcd,lorneli/etcd,glevand/coreos--etcd,mqliang/etcd,whuwxl/etcd,mkumatag/etcd,fanminshi/etcd,etcd-io/etcd,mickep76/etcd,gyuho/etcd,bluebreezecf/etcd,a-robinson/etcd,YuleiXiao/etcd,ajityagaty/etcd,coreos/etcd,bdarnell/etcd,joshix/etcd,armstrongli/etcd,vimalk78/etcd,mkumatag/etcd,joshix/etcd,mkumatag/etcd,YuleiXiao/etcd,akauppi/etcd,li-ang/etcd,gyuho/etcd,rnaveiras/etcd,cockroachdb/etcd