[add] platform info

Author: i4004

README.md

@@ -4,7 +4,7 @@
 [![Nuget Download](https://img.shields.io/nuget/dt/Simplify.Web.Postman)](https://www.nuget.org/packages/Simplify.Web.Postman/)
 [![Build Package](https://github.com/SimplifyNet/Simplify.Web.Postman/actions/workflows/build.yml/badge.svg)](https://github.com/SimplifyNet/Simplify.Web.Postman/actions/workflows/build.yml)[![Libraries.io dependency status for latest release](https://img.shields.io/librariesio/release/nuget/Simplify.Web.Postman)](https://libraries.io/nuget/Simplify.Web.Postman)
 [![CodeFactor Grade](https://img.shields.io/codefactor/grade/github/SimplifyNet/Simplify.Web.Postman)](https://www.codefactor.io/repository/github/simplifynet/Simplify.Web.Postman)
-![Platform](https://img.shields.io/badge/platform-.NET%20Standard%202.0-lightgrey)
+![Platform](https://img.shields.io/badge/platform-.NET%206.0%20%7C%20.NET%20Standard%202.0-lightgrey)
 [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen)](http://makeapullrequest.com)
 
 `Simplify.Web.Postman` is a package which provides Postman collection and environment generation extension for [Simplify.Web](https://github.com/SimplifyNet/Simplify.Web) web-framework controllers.