Update README.md

Author: yogyogi

README.md

@@ -5,4 +5,6 @@ QRCoder Implemented in ASP.NET Core
 
 This repository is made for anyone who wants to generate QRCodes in their [ASP.NET Core](https://www.yogihosting.com/category/aspnet-core/) Application.
 
+I have also explained the full working of the codes at - [How to easily implement QRCoder in ASP.NET Core using C#](https://medium.com/free-code-camp/how-to-easily-implement-qrcoder-in-asp-net-core-using-c-10c4aa857e84)
+
 Star this respository and Enjoy Coding!