fix: adjust list to order of execution

README.md

@@ -30,8 +30,8 @@ The CCIPs describe the design, implementation, and governance of the CityCoins P
 | [CCIP-014](./ccips/ccip-014/ccip-014-upgrade-to-pox3.md)                           | Upgrade to pox-3                          |
 | [CCIP-015](./ccips/ccip-015/ccip-015-community-proposal-voting-process.md)         | Community Proposal Voting Process         |
 | [CCIP-017](./ccips/ccip-017/ccip-017-extend-direct-execute-sunset-period.md)       | Extend Sunset Period                      |
-| [CCIP-020](./ccips/ccip-020/ccip-020-graceful-protocol-shutdown.md)                | Graceful Protocol Shutdown                |
 | [CCIP-021](./ccips/ccip-021/ccip-021-extend-direct-execute-sunset-period-2.md)     | Extend Sunset Period 2                    |
+| [CCIP-020](./ccips/ccip-020/ccip-020-graceful-protocol-shutdown.md)                | Graceful Protocol Shutdown                |
 
 ## How to Get Involved