Oxford comma edits

I added several missing commas.

Author: BirdboyBolu

README.md

@@ -5,7 +5,7 @@ ASP.NET Core
 [![MIT License](https://img.shields.io/github/license/dotnet/aspnetcore?color=%230b0&style=flat-square)](https://github.com/dotnet/aspnetcore/blob/main/LICENSE.txt) [![Help Wanted](https://img.shields.io/github/issues/dotnet/aspnetcore/help%20wanted?color=%232EA043&label=help%20wanted&style=flat-square)](https://github.com/dotnet/aspnetcore/issues?q=is%3Aissue+is%3Aopen+label%3A%22help+wanted%22) [![Good First Issues](https://img.shields.io/github/issues/dotnet/aspnetcore/good%20first%20issue?color=%23512BD4&label=good%20first%20issue&style=flat-square)](https://github.com/dotnet/aspnetcore/issues?q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22)
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-ASP.NET Core is an open-source and cross-platform framework for building modern cloud-based internet-connected applications, such as web apps, IoT apps and mobile backends. ASP.NET Core apps run on [.NET](https://dot.net), a free, cross-platform and open-source application runtime. It was architected to provide an optimized development framework for apps that are deployed to the cloud or run on-premises. It consists of modular components with minimal overhead, so you retain flexibility while constructing your solutions. You can develop and run your ASP.NET Core apps cross-platform on Windows, Mac and Linux. [Learn more about ASP.NET Core](https://learn.microsoft.com/aspnet/core/).
+ASP.NET Core is an open-source and cross-platform framework for building modern cloud-based internet-connected applications, such as web apps, IoT apps, and mobile backends. ASP.NET Core apps run on [.NET](https://dot.net), a free, cross-platform, and open-source application runtime. It was architected to provide an optimized development framework for apps that are deployed to the cloud or run on-premises. It consists of modular components with minimal overhead, so you retain flexibility while constructing your solutions. You can develop and run your ASP.NET Core apps cross-platform on Windows, Mac, and Linux. [Learn more about ASP.NET Core](https://learn.microsoft.com/aspnet/core/).
 
 ## Get started