consensus: fix comment typo (#17562)

consensus/consensus.go

@@ -90,7 +90,7 @@ type Engine interface {
 	// the result into the given channel.
 	//
 	// Note, the method returns immediately and will send the result async. More
-	// than one result may also be returned depending on the consensus algorothm.
+	// than one result may also be returned depending on the consensus algorithm.
 	Seal(chain ChainReader, block *types.Block, results chan<- *types.Block, stop <-chan struct{}) error
 
 	// SealHash returns the hash of a block prior to it being sealed.