Referenced the new user guide

README.md

@@ -13,6 +13,7 @@
     * agent3.webhook (For capturing webhook events)
 
 *Notes* : By default the agents are pointed to indy ledger hosted at https://indy.igrant.io, 
+
 You can always change this to your ledger of choice by updating *GENESIS_URL* environment variable in docker-compose.yml file
 
 #### Webhooks
@@ -23,10 +24,12 @@ A webhook interceptor is provided to debug the webhook events. It can be accesse
 2. `docker exec -it agent2.webhook tail -f demo.log` - For viewing webhook events for agent2
 3. `docker exec -it agent3.webhook tail -f demo.log` - For viewing webhook events for agent3
 
+Please refer the [user guide executing on the credential issue and verification](https://github.com/decentralised-dataexchange/aries-playground/blob/credential-issue-and-verification-ug/credential-issue-and-verification-api-user-guide.md) for the above reference system.
+
 #### Configuring the agent startup
 
 The startup.sh file inside cloud-agent folder contains the `aca-py` startup command. You can modify it according to your development needs.
 
 #### Todo
 
-1. Providing a web interface for webhook event interceptor
+1. Providing a web interface for webhook event interceptor