chore: update README.md

packages/axelar-local-dev-cosmos/README.md

@@ -1,12 +1,16 @@
+# Axelar Local Dev Cosmos
+
+> Note: This package is under development and may have unstable functionalities.
+
 ## Prerequisite
 
-- Make sure you have running Docker in your local machine.
+- Docker running on your local machine.
 
-## Start Wasm and Axelar Chain
+## Quick Start
 
-This step will take some time because it need to pull the docker image, setup the chains, and IBC connections.
+### Start Wasm and Axelar Chain
 
-All you have to do is run the following command:
+Run the following command to pull the Docker image, set up the chains, and establish IBC connections:
 
 ```bash
 npm run start
@@ -19,3 +23,69 @@ import { startAll } from "@axelar-network/axelar-local-dev-cosmos";
 
 startAll();
 ```
+
+## Run IBC Relayer and Axelar Event Listener
+
+Now, you have to run the Axelar Listener to keep listening to incoming IBC events from IBC Relayer which relays message from Wasm chain to Axelar chain.
+
+1. **Run IBC Relayer** to relay messages periodically:
+
+```ts
+const {
+  IBCRelayerService,
+} = require("@axelar-network/axelar-local-dev-cosmos");
+
+const ibcRelayer = await IBCRelayerService.create();
+await ibcRelayer.setup();
+await ibcRelayer.runInterval();
+```
+
+2. **Run Axelar Relayer Service** to keep listening to incoming events:
+
+```ts
+import {
+  defaultAxelarChainInfo,
+  AxelarRelayerService,
+} from "@axelar-network/axelar-local-dev-cosmos";
+
+const axelarRelayerService = await AxelarRelayerService.create(
+  defaultAxelarChainInfo
+);
+
+await axelarRelayerService.listenForEvents();
+```
+
+### Relaying Messages
+
+After submitting a message from `Ethereum` or `Wasm` chain, use the relay function:
+
+```ts
+import { evmRelayer } from "@axelar-network/axelar-local-dev";
+import {
+  defaultAxelarChainInfo,
+  AxelarRelayerService,
+} from "@axelar-network/axelar-local-dev-cosmos";
+
+// Setup for Ethereum Network and Wasm chain relayer
+const evmNetwork = await createNetwork({ name: "Ethereum" });
+const wasmRelayer = await AxelarRelayerService.create(defaultAxelarChainInfo);
+
+// Deploy contracts, send message, and call relay function
+// ...
+
+// evmRelayer is initialized prior to export.
+await relay({
+  wasm: wasmRelayer,
+  evm: evmRelayer,
+});
+
+// Verify results on the destination chain
+// ...
+```
+
+### Examples
+
+- Currently, we support Ethereum as the destination chain for messages from the Wasm chain.
+- See our [Local E2E Test](src/__tests__/e2e/relayer.e2e.ts) and [Axelar Example](https://github.com/axelarnetwork/axelar-examples/tree/feat/add-cosmos-examples/examples/cosmos/call-contract) for implementation details.
+
+> The Local E2E test utilizes the same contracts as in the Axelar Examples.