Update README.md

Author: karen-avetisyan-mc

README.md

@@ -7,7 +7,7 @@
 [![](https://img.shields.io/nuget/v/Mastercard.Developer.ClientEncryption.Core.svg?label=nuget%20|%20core)](https://www.nuget.org/packages/Mastercard.Developer.ClientEncryption.Core/)
 [![](https://img.shields.io/nuget/v/Mastercard.Developer.ClientEncryption.RestSharp.svg?label=nuget%20|%20restsharp%20portable)](https://www.nuget.org/packages/Mastercard.Developer.ClientEncryption.RestSharp/)
 [![](https://img.shields.io/nuget/v/Mastercard.Developer.ClientEncryption.RestSharpV2.svg?label=nuget%20|%20restsharp)](https://www.nuget.org/packages/Mastercard.Developer.ClientEncryption.RestSharpV2/)
-[![](https://img.shields.io/badge/license-MIT-yellow.svg)](https://github.com/Mastercard/client-encryption-csharp/blob/master/LICENSE)
+[![](https://img.shields.io/badge/license-MIT-yellow.svg)](https://github.com/Mastercard/client-encryption-csharp/blob/main/LICENSE)
 
 ## Table of Contents
 - [Overview](#overview)