rpc: add notes for get_consensus rpc multisig will upgrade

Signed-off-by: Eval EXEC <[email protected]>

Author: eval-exec

rpc/README.md

@@ -1657,6 +1657,8 @@ The response looks like below when `verbosity` is 0.
 
 Return various consensus parameters.
 
+Notes: The `secp256k1_blake160_multisig_all_type_hash` the hash created on genesis block, CKB may upgrade the multisig script: https://github.com/nervosnetwork/ckb-system-scripts
+
 ###### Returns
 
 If any hardfork feature has `epoch=null`, it means the feature will never be activated.
@@ -7544,4 +7546,4 @@ For example, a cellbase transaction is not allowed in `send_transaction` RPC.
 ### ERROR `PoolRejectedInvalidated`
 (-1112): The transaction is rejected for ref cell consuming.
 ### ERROR `Indexer`
-(-1200): The indexer error.
+(-1200): The indexer error.

rpc/src/module/chain.rs

@@ -1322,6 +1322,8 @@ pub trait ChainRpc {
 
     /// Return various consensus parameters.
     ///
+    /// Notes: The `secp256k1_blake160_multisig_all_type_hash` the hash created on genesis block, CKB may upgrade the multisig script: https://github.com/nervosnetwork/ckb-system-scripts
+    ///
     /// ## Returns
     ///
     /// If any hardfork feature has `epoch=null`, it means the feature will never be activated.