diff --git a/README.md b/README.md
index bbf6c08..1d61a5a 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ Particle Connect is the best way to onboard any user for your dApp.
 
 Particle Wallet is not an independent wallet—it is a wallet infrastructure plugged into apps or wallets.
 
-Particle AA support Account Abstraction
+Particle AA supports Account Abstraction
 
 ## iOS Cocoapods requires
 
@@ -74,7 +74,7 @@ import 'package:particle_auth_core/particle_auth_core.dart';
 
 ### Structure Transaction
 In particle-auth/example/lib/mock/transaction_mock.dart, We provide several examples that show how to structure transactions,
-how to read contract and write contract.
+how to read contracts and write contracts.
 
 
 
diff --git a/UpgradeGuide.md b/UpgradeGuide.md
index 58ab751..4220e7d 100644
--- a/UpgradeGuide.md
+++ b/UpgradeGuide.md
@@ -24,5 +24,5 @@ Upgrading from version 1.4.x to version 1.5.x - this is an upgrade guide. If you
 | setChainInfoAsync      | switchChain                                       | -                                          |
 
 ## More details
-With partice-connect, WalletType.authCore, after connect successfully, you will get an account, that contains publicAddress, if you need more data, such as userInfo, you can retrieve it by calling `particleAuthCore.getUserInfo`, and we can't provide userInfo for other walletTypes.
+With particle-connect and WalletType.authCore, after a successful connection, you will get an account that contains a publicAddress. If you need more data, such as userInfo, you can retrieve it by calling particleAuthCore.getUserInfo. Note that userInfo is not available for other walletTypes.