Update README.md

Co-authored-by: Nuvindu Nirmana <[email protected]>

README.md

@@ -3,7 +3,7 @@
 [![Build](https://github.com/ballerina-platform/module-ballerinax-aws.marketplace.mpe/actions/workflows/ci.yml/badge.svg)](https://github.com/ballerina-platform/module-ballerinax-aws.marketplace.mpe/actions/workflows/ci.yml)
 [![Trivy](https://github.com/ballerina-platform/module-ballerinax-aws.marketplace.mpe/actions/workflows/trivy-scan.yml/badge.svg)](https://github.com/ballerina-platform/module-ballerinax-aws.marketplace.mpe/actions/workflows/trivy-scan.yml)
 [![GraalVM Check](https://github.com/ballerina-platform/module-ballerinax-aws.marketplace.mpe/actions/workflows/build-with-bal-test-graalvm.yml/badge.svg)](https://github.com/ballerina-platform/module-ballerinax-aws.marketplace.mpe/actions/workflows/build-with-bal-test-graalvm.yml)
-[![GitHub Last Commit](https://img.shields.io/github/last-commit/ballerina-platform/module-ballerinax-aws.marketplace.mpe.svg)](https://github.com/ballerina-platform/module-ballerinax-aws.marketplace.mpe/commits/master)
+[![GitHub Last Commit](https://img.shields.io/github/last-commit/ballerina-platform/module-ballerinax-aws.marketplace.mpe.svg)](https://github.com/ballerina-platform/module-ballerinax-aws.marketplace.mpe/commits/main)
 [![GitHub Issues](https://img.shields.io/github/issues/ballerina-platform/ballerina-library/module/aws.marketplace.mpe.svg?label=Open%20Issues)](https://github.com/ballerina-platform/ballerina-library/labels/module%aws.marketplace.mpe)
 
 [AWS Marketplace Entitlement Service](https://docs.aws.amazon.com/marketplace/latest/userguide/entitlement.html) is a