diff --git a/README.md b/README.md
index 93d1148..5fdfcaf 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # DSA Connectors
 
-Connectors are standard modules that let DeFi Smart Account interact with various smart contracts, and make the important actions accessible.
+Connectors are standard modules that let DeFi Smart Account interact with various smart contracts, and make the important actions accessible like cross protocol interoperability.
 
 ## Add Custom Connectors
 
diff --git a/contracts/common/interfaces.sol b/contracts/common/ERC20.sol
similarity index 91%
rename from contracts/common/interfaces.sol
rename to contracts/common/ERC20.sol
index d3987cf..487cebf 100644
--- a/contracts/common/interfaces.sol
+++ b/contracts/common/ERC20.sol
@@ -1,11 +1,10 @@
 pragma solidity ^0.6.0;
 
-interface TokenInterface {
+interface ERC20 {
     function approve(address, uint) external;
     function transfer(address, uint) external;
     function transferFrom(address, address, uint) external;
     function deposit() external payable;
     function withdraw(uint) external;
     function balanceOf(address) external view returns (uint);
-}
-
+}
\ No newline at end of file
diff --git a/contracts/connectors/mock.sol b/contracts/connectors/mock.sol
index 0bafad2..c3e8834 100644
--- a/contracts/connectors/mock.sol
+++ b/contracts/connectors/mock.sol
@@ -1,7 +1,7 @@
 pragma solidity ^0.6.0;
 
 // import files from common directory
-import "../common/interfaces.sol";
+import { ERC20 } from "../common/ERC20.sol";
 import { Stores } from "../common/stores.sol";
 import { DSMath } from "../common/math.sol";
 
@@ -12,6 +12,8 @@ contract MockProtocol is Stores, DSMath {
     // added two additional parameter (getId & setId) for external public facing functions
     function mockFunction(uint mockNumber, uint getId, uint setId) external payable {
 
+        // protocol specific logics goes here
+
         // fetch value of specific id
         uint mockBalance = getUint(getId, mockNumber);