updated readme file

Author: “Shivam

jwt_authorizer_websocket_api_lambda_authorizer/README.md

@@ -1,19 +1,16 @@
-# Serverless JWT Authorizer for Websocket APIGW using Lambda Authorizer
+# Serverless JWT Authorizer for Websocket Amazon API Gateway with AWS Lambda Authorizer
 ![Concept](./images/flow.png)
 
-This serverless pattern allows users to Authenticate/Authorizer using Cognito Token via Lambda Authorizer for API Gateway websocket API. 
+This serverless pattern demonstrates how to authenticate and authorize users via a Lambda authorizer for an API Gateway WebSocket API using Amazon Cognito user pool tokens.
 
 Learn more about this pattern at Serverless Land Patterns: https://serverlessland.com/patterns/jwt_authorizer_websocket_api_lambda_authorizer
 
 Important: this ready-to-use application uses various AWS services and there are costs associated with these services after the Free Tier usage - please see the [AWS Pricing page](https://aws.amazon.com/pricing/) for details. You are responsible for any AWS costs incurred. No warranty is implied in this example.
 
 ## Requirements:
 
-* [Create one account](https://portal.aws.amazon.com/gp/aws/developer/registration/index.html) if you do not already have, create the account and log in. The IAM user that you use must have sufficient permissions to make necessary AWS service calls and manage AWS resources.
-* [AWS CLI](https://docs.aws.amazon.com/cli/latest/userguide/install-cliv2.html) installed and configure default profile with credentials for the individual account as below :
-```
-[default]
-```
+* [Create an AWS account](https://portal.aws.amazon.com/gp/aws/developer/registration/index.html) if you do not already have one and log in. The IAM user that you use must have sufficient permissions to make necessary AWS service calls and manage AWS resources.
+* [AWS CLI](https://docs.aws.amazon.com/cli/latest/userguide/install-cliv2.html) installed and configured 
 * [Git Installed](https://git-scm.com/book/en/v2/Getting-Started-Installing-Git)
 * [SAM Installed](https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/install-sam-cli.html)
 * [Wscat Installed](https://docs.aws.amazon.com/apigateway/latest/developerguide/apigateway-how-to-call-websocket-api-wscat.html)