chore: fix some comments (#2762)

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## Overview

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The current comment has an extra space; based on the context, I think it
should be "target chain."

Signed-off-by: asttool <asttool@outlook.com>

Author: asttool

core/sequencer/sequencing.go

@@ -10,20 +10,20 @@ import (
 // Sequencer is a generic interface for a sequencer
 type Sequencer interface {
 	// SubmitBatchTxs submits a batch of transactions from  to sequencer
-	// Id is the unique identifier for the  chain
+	// Id is the unique identifier for the target chain
 	// Batch is the batch of transactions to submit
 	// returns an error if any from the sequencer
 	SubmitBatchTxs(ctx context.Context, req SubmitBatchTxsRequest) (*SubmitBatchTxsResponse, error)
 
 	// GetNextBatch returns the next batch of transactions from sequencer to
-	// Id is the unique identifier for the  chain
+	// Id is the unique identifier for the target chain
 	// LastBatchHash is the cryptographic hash of the last batch received by the
 	// MaxBytes is the maximum number of bytes to return in the batch
 	// returns the next batch of transactions and an error if any from the sequencer
 	GetNextBatch(ctx context.Context, req GetNextBatchRequest) (*GetNextBatchResponse, error)
 
 	// VerifyBatch verifies a batch of transactions received from the sequencer
-	// Id is the unique identifier for the  chain
+	// Id is the unique identifier for the target chain
 	// BatchHash is the cryptographic hash of the batch to verify
 	// returns a boolean indicating if the batch is valid and an error if any from the sequencer
 	VerifyBatch(ctx context.Context, req VerifyBatchRequest) (*VerifyBatchResponse, error)

docs/learn/sequencing/overview.md

@@ -10,20 +10,20 @@
 // Sequencer is a generic interface for a sequencer
 type Sequencer interface {
  // SubmitBatchTxs submits a batch of transactions  to sequencer
- // Id is the unique identifier for the  chain
+ // Id is the unique identifier for the target chain
  // Batch is the batch of transactions to submit
  // returns an error if any from the sequencer
  SubmitBatchTxs(ctx context.Context, req SubmitBatchTxsRequest) (*SubmitBatchTxsResponse, error)
 
  // GetNextBatch returns the next batch of transactions from sequencer to
- // Id is the unique identifier for the  chain
+ // Id is the unique identifier for the target chain
  // LastBatchHash is the cryptographic hash of the last batch received by the
  // MaxBytes is the maximum number of bytes to return in the batch
  // returns the next batch of transactions and an error if any from the sequencer
  GetNextBatch(ctx context.Context, req GetNextBatchRequest) (*GetNextBatchResponse, error)
 
  // VerifyBatch verifies a batch of transactions received from the sequencer
- // Id is the unique identifier for the  chain
+ // Id is the unique identifier for the target chain
  // BatchHash is the cryptographic hash of the batch to verify
  // returns a boolean indicating if the batch is valid and an error if any from the sequencer
  VerifyBatch(ctx context.Context, req VerifyBatchResponse) (*VerifyBatchResponse, error)