Update README.md

Author: mendozagit

README.md

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 # 🧾 Fiscalapi XML Downloader (sat-ws-descarga-masiva)
 
-[![Nuget](https://img.shields.io/nuget/v/Fiscalapi.XmlDownloader)](https://www.nuget.org/packages/Fiscalapi.XmlDownloader)
+
 [![.NET](https://img.shields.io/badge/.NET-8.0-purple.svg)](https://dotnet.microsoft.com/download/dotnet/8.0)
+[![.NET](https://img.shields.io/badge/.NET-9.0-purple.svg)](https://dotnet.microsoft.com/download/dotnet/9.0)
+[![Nuget](https://img.shields.io/nuget/v/Fiscalapi.XmlDownloader)](https://www.nuget.org/packages/Fiscalapi.XmlDownloader)
 [![License](https://img.shields.io/badge/license-MPL-blue.svg)](LICENSE)
 
 ## 📋 Descripción