Update README.md

Author: AdrienTorris

README.md

@@ -209,6 +209,7 @@ To get started with Blazor, follow the instructions in the [Blazor Get Started](
 
 ## Tutorials
 * [Blazor workshop](https://github.com/dotnet-presentations/blazor-workshop/) - ![GitHub stars](https://img.shields.io/github/stars/dotnet-presentations/blazor-workshop?style=flat-square&cacheSeconds=604800&logo=microsoft) Blazor app building workshop by [.NET Foundation](https://www.dotnetfoundation.org/), Blazzing Pizza.
+* [Tetris in Blazor](https://exceptionnotfound.net/tetris-in-blazor-webassembly/) - March, 2021 - [Part 1](https://exceptionnotfound.net/tetris-in-blazor-webassembly/), [Part 2](https://exceptionnotfound.net/tetris-in-blazor-part-2-cells-the-grid-and-the-game-state/). [Source code](https://github.com/exceptionnotfound/BlazorGames) ![stars](https://img.shields.io/github/stars/exceptionnotfound/BlazorGames?style=flat-square&cacheSeconds=604800) ![last commit](https://img.shields.io/github/last-commit/exceptionnotfound/BlazorGames?style=flat-square&cacheSeconds=86400).
 * [Setting dynamic metadata for Blazor Web Assembly](https://damienbod.com/2021/03/23/setting-dynamic-metadata-for-blazor-web-assembly/) - March 23, 2021 - This post shows how HTML header meta data can be dynamically updated or changed for a Blazor Web assembly application routes hosted in ASP.NET Core. This can be usually for changing how URL link previews are displayed when sharing links. [Source code](https://github.com/damienbod/BlazorMetaData) ![stars](https://img.shields.io/github/stars/damienbod/BlazorMetaData?style=flat-square&cacheSeconds=604800) ![last commit](https://img.shields.io/github/last-commit/damienbod/BlazorMetaData?style=flat-square&cacheSeconds=86400).
 * [How to use gRPC-Web with Blazor WebAssembly on App Service](https://azure.github.io/AppService/2021/03/15/How-to-use-gRPC-Web-with-Blazor-WebAssembly-on-App-Service.html) - March 15, 2021 - How to use gRPC-Web with Blazor WebAssembly on App Service.
 * [How to deploy Blazor WebAssembly to Cloudflare](https://swimburger.net/blog/dotnet/how-to-deploy-blazor-webassembly-to-cloudflare-pages) - March 14, 2021 - How to deploy Blazor WebAssembly to Cloudflare. [Source code](https://github.com/Swimburger/BlazorWasmCloudflarePages) ![stars](https://img.shields.io/github/stars/Swimburger/BlazorWasmCloudflarePages?style=flat-square&cacheSeconds=604800) ![last commit](https://img.shields.io/github/last-commit/Swimburger/BlazorWasmCloudflarePages?style=flat-square&cacheSeconds=86400).