Merge pull request #203 from bnb-chain/develop

docs: update readme

README.md

@@ -41,7 +41,7 @@ cosmossdk.io/api => github.com/bnb-chain/greenfield-cosmos-sdk/api v0.0.0-202308
 cosmossdk.io/math => github.com/bnb-chain/greenfield-cosmos-sdk/math v0.0.0-20230816082903-b48770f5e210
 github.com/cometbft/cometbft => github.com/bnb-chain/greenfield-cometbft v0.0.3
 github.com/cometbft/cometbft-db => github.com/bnb-chain/greenfield-cometbft-db v0.8.1-alpha.1
-github.com/cosmos/cosmos-sdk => github.com/bnb-chain/greenfield-cosmos-sdk v0.2.5
+github.com/cosmos/cosmos-sdk => github.com/bnb-chain/greenfield-cosmos-sdk v0.2.6
 github.com/cosmos/iavl => github.com/bnb-chain/greenfield-iavl v0.20.1
 github.com/syndtr/goleveldb => github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7
 github.com/consensys/gnark-crypto => github.com/consensys/gnark-crypto v0.7.0
@@ -98,7 +98,9 @@ The **storage.go** includes the most storage functions such as creating a bucket
 
 The **group.go** includes the group related functions such as creating a group and updating group member.
 
-The **payment.go** includes the payment related functions to management payment account.
+The **payment.go** includes the payment related functions to manage payment accounts.
+
+The **permission.go** includes the permission related functions to manage resources(bucket, object, group) policy.
 
 The **crosschain.go** includes the cross chain related functions to transfer or mirror resource to BSC.