docs: Modified the description of the interface layer
@@ -37,7 +37,7 @@ 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 users to invoke the corresponding blockchain.
++ 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.
@@ -51,7 +51,7 @@ Figure 4-1 BoAT Overall Framework
### Interface Layer
#### Overview
-The interface layer is located at the top layer of BoAT and provides users with access to each blockchain. The interface layer consists of two parts:
+The interface layer is located at the top layer of BoAT and provides IoT applications with access to each blockchain. The interface layer consists of two parts:
+ Wallet interface
* The wallet interface is the entrance to the BoAT SDK, and different blockchains have a common wallet entrance.
+ Transaction interface
