small typos (#269)

Author: samliok

epoch.go

@@ -2811,7 +2811,7 @@ func (e *Epoch) maybeAdvanceRoundFromEmptyNotarizations() (bool, error) {
 	round := e.round
 	expectedSeq := e.metadata().Seq
 
-	nextSeqQuorum := e.replicationState.GetQuroumRoundWithSeq(expectedSeq)
+	nextSeqQuorum := e.replicationState.GetQuorumRoundWithSeq(expectedSeq)
 	if nextSeqQuorum != nil {
 		// num empty notarizations
 		if round < nextSeqQuorum.GetRound() {

replication.go

@@ -13,7 +13,7 @@ import (
 	"go.uber.org/zap"
 )
 
-// signedSequence is a sequence that has been signed by a qourum certificate.
+// signedSequence is a sequence that has been signed by a quorum certificate.
 // it essentially is a quorum round without the enforcement of needing a block with a
 // finalization or notarization.
 type signedSequence struct {
@@ -315,7 +315,7 @@ func (r *ReplicationState) highestKnownRound() uint64 {
 	return highestRound
 }
 
-func (r *ReplicationState) GetQuroumRoundWithSeq(seq uint64) *QuorumRound {
+func (r *ReplicationState) GetQuorumRoundWithSeq(seq uint64) *QuorumRound {
 	for _, round := range r.receivedQuorumRounds {
 		if round.GetSequence() == seq {
 			return &round