consensus/parlia: explain turnterm in comments

consensus/parlia/parlia.go

@@ -54,7 +54,7 @@ const (
 
 	checkpointInterval = 1024        // Number of blocks after which to save the snapshot to the database
 	defaultEpochLength = uint64(100) // Default number of blocks of checkpoint to update validatorSet from contract
-	defaultTurnTerm    = uint64(1)   // Default consecutive number of blocks a validator receives priority for block production
+	defaultTurnTerm    = uint64(1)   // Default consecutive number of blocks a validator receives priority for block production, meaning default term of `turn`
 
 	extraVanity      = 32 // Fixed number of extra-data prefix bytes reserved for signer vanity
 	extraSeal        = 65 // Fixed number of extra-data suffix bytes reserved for signer seal