Update connect-csharp.md

Author: mksuni

articles/postgresql/connect-csharp.md

@@ -27,7 +27,7 @@ For this quickstart you need:
   | **Configure Service Endpoint** | Public | [Portal](./howto-manage-vnet-using-portal.md) <br/> [CLI](./howto-manage-vnet-using-cli.md)|
   | **Configure private link** | Private | [Portal](./howto-configure-privatelink-portal.md) <br/> [CLI](./howto-configure-privatelink-cli.md) |
 
-- Install the [.NET SDK for your platform](/dotnet/core/install/windows?tabs=net50) (Windows, Ubuntu Linux, or macOS) for your platform.
+- Install the [.NET SDK for your platform](https://dotnet.microsoft.com/download) (Windows, Ubuntu Linux, or macOS) for your platform.
 - Install [Visual Studio](https://www.visualstudio.com/downloads/) to build your project.
 - Install [Npgsql](https://www.nuget.org/packages/Npgsql/) NuGet package in Visual Studio.