Mark rfc0004 as Informational and Final

README.md

@@ -60,7 +60,7 @@ The maintainers of RFCs and the community will review the PR, and you should upd
 | [1](rfcs/0001-positioning) | [The Nervos Network Positioning Paper](rfcs/0001-positioning/0001-positioning.md) | The Nervos Team | Informational | Final |
 | [2](rfcs/0002-ckb) | [Nervos CKB: A Common Knowledge Base for Crypto-Economy](rfcs/0002-ckb/0002-ckb.md) | Jan Xie | Informational | Final |
 | [3](rfcs/0003-ckb-vm) | [CKB-VM](rfcs/0003-ckb-vm/0003-ckb-vm.md) | Xuejie Xiao | Informational | Final |
-| [4](rfcs/0004-ckb-block-sync) | [CKB Block Synchronization Protocol](rfcs/0004-ckb-block-sync/0004-ckb-block-sync.md) | Ian Yang | Standards Track | Proposal |
+| [4](rfcs/0004-ckb-block-sync) | [CKB Block Synchronization Protocol](rfcs/0004-ckb-block-sync/0004-ckb-block-sync.md) | Ian Yang | Informational | Final |
 | [5](rfcs/0005-priviledged-mode) | [Privileged architecture support for CKB VM](rfcs/0005-priviledged-mode/0005-priviledged-mode.md) | Xuejie Xiao | Informational | Withdrawn |
 | [6](rfcs/0006-merkle-tree) | [Merkle Tree for Static Data](rfcs/0006-merkle-tree/0006-merkle-tree.md) | Ke Wang | Standards Track | Active |
 | [7](rfcs/0007-scoring-system-and-network-security) | [P2P Scoring System And Network Security](rfcs/0007-scoring-system-and-network-security/0007-scoring-system-and-network-security.md) | Jinyang Jiang | Standards Track | Withdrawn |

rfcs/0004-ckb-block-sync/0004-ckb-block-sync.md

@@ -1,7 +1,7 @@
 ---
 Number: "0004"
-Category: Standards Track
-Status: Proposal
+Category: Information
+Status: Final
 Author: Ian Yang
 Organization: Nervos Foundation
 Created: 2018-07-25

rfcs/0004-ckb-block-sync/0004-ckb-block-sync.zh.md

@@ -1,7 +1,7 @@
 ---
 Number: "0004"
-Category: Standards Track
-Status: Proposal
+Category: Information
+Status: Final
 Author: Ian Yang
 Organization: Nervos Foundation
 Created: 2018-07-25