chore: change README.md

README.md

@@ -60,12 +60,12 @@ function bindPort(string calldata portId, address moduleAddress)
 
 To comply with IBC protocol regulations, a channel cannot function until it is paired with a business module through a port.
 
-## Send ICS20 Packet (WIP)
+## Send ICS20 Packet (using ERC20)
 
-In the previous migration step, a standard ICS20 transfer module has already been bound at port `port-0` by default. Run script `scripts/send_packet.js` to send a standard custom ICS20 packet:
+In the previous migration step, a standard ICS20 transfer module has already been bound at port `transfer` by default. Run script `scripts/send_erc20_packet.js` to send a standard custom ICS20 packet:
 
 ```bash
 $ yarn send
 ```
 
-This is because an IBC packet cannot be sent by directly calling the method in `OwnableIBCHandler` contract. Instead, it should be sent by calling a method in the business module, and the handler contract will be invoked subsequently.
+This is because an IBC packet cannot be sent by directly calling the method in `OwnableIBCHandler` contract. Instead, it should be sent by calling a method in the business module, and the handler contract will be invoked subsequently.