Update README.md

adding documentation for running chat client

Author: onlyzerosonce

README.md

@@ -55,6 +55,11 @@ cd eliza-starter
 cp .env.example .env
 pnpm i && pnpm build && pnpm start
 ```
+Once the agent is running, You should see the message to run "pnpm start:client" at the end.
+Open another terminal and move to same directory and then run below command and follow the URL to chat to your agent. 
+```bash
+pnpm start:client
+```
 
 Then read the [Documentation](https://elizaos.github.io/eliza/) to learn how to customize your Eliza.