docs: Change sentences of Implementation Framework
fix issue
@@ -36,13 +36,13 @@ Figure 3-1 The position of BoAT in the blockchain interactive network
## BoAT Implementation Framework
-Boat follows a hierarchical design consisting of Interface Layer, Protocol Layer, RPC Layer, Vendor Dependency Layer, Tool and Utility. The specific functions of each layer are as follows:
-+ Interface Layer: Provide an interface for IoT Application to invoke the corresponding blockchain.
-+ Protocol Layer: The main implementation of each block chain protocol.
-+ RPC Layer: Provide services to the protocol layer.
-+ Vendor Dependency Layer: Provide cryptographic algorithms, signature, storage and other services for the interface layer wallet.
+BoAT follows a hierarchical design consisting of Interface Layer, Protocol Layer, RPC Layer, Vendor Dependency Layer, Tool and Utility. The specific functions of each layer are as follows:
++ Interface Layer: Provides an interface for IoT applications to invoke the corresponding blockchain.
++ Protocol Layer: The primary implementation of each blockchain protocol.
++ RPC Layer: Provides services for the protocol layer.
++ Vendor Dependency Layer: Provides cryptographic algorithms, signature, storage, and other services for the interface layer wallet.
+ Tool: The general tool is used to generate the C language interface of the smart contract.
-+ Utility: The utility program provides services such as data format conversion, message encoding and decoding to each layer.
++ Utility: The utility program provides data format conversion, message encoding, and decoding to each layer.
The overall framework of BoAT is shown in Figure 4-1.
![BoAT Overall Framework](./images/BoAT_Overall_Design_en-F4-1-BoAT_Overall_Framework.png)
