Update README, fix license links

README.md

@@ -1,7 +1,7 @@
 ### OpenTransSharp and BMEcatSharp
 [![openTRANS](https://img.shields.io/badge/openTRANS-2.1-%230b0?color=%230b0&labelColor=7D8D75)](https://de.wikipedia.org/wiki/OpenTRANS) 
 [![BMEcat](https://img.shields.io/badge/BMEcat-%202005-%230b0?color=%230b0&labelColor=7D8D75)](https://de.wikipedia.org/wiki/BMEcat)
-[![Supports .NET](https://img.shields.io/badge/-.NET%20Standard%202.0%20%7C%20%20.NET%20Core%203.1+%20%7C%20.NET%205+-%230b0?color=%230b0&logo=dotnet&labelColor=5A27D5)](https://www.nuget.org/packages?q=id%3Aopentranssharp+id%3Abmecatsharp)  
+[![Supports .NET](https://img.shields.io/badge/-.NET%20Standard%202.0%20%7C%20%20.NET%206+-%230b0?color=%230b0&logo=dotnet&labelColor=5A27D5)](https://www.nuget.org/packages?q=id%3Aopentranssharp+id%3Abmecatsharp)  
 [![NuGet](https://img.shields.io/nuget/v/OpenTransSharp.svg?logo=nuget&labelColor=04487D)](https://www.nuget.org/packages?q=id%3Aopentranssharp+id%3Abmecatsharp)
  [![Downloads](https://img.shields.io/nuget/dt/OpenTransSharp?logo=nuget&labelColor=04487D)](https://www.nuget.org/packages?q=id%3Aopentranssharp+id%3Abmecatsharp)
 [![MPL-2.0 License](https://img.shields.io/github/license/warappa/OpenTransSharp?color=%230b0&logo=internetarchive)](https://github.com/warappa/OpenTransSharp/blob/main/LICENSE.md)  
@@ -16,7 +16,7 @@ This project is built on the **[.NET](https://dot.net)** platform and uses the *
 
 #### Features
 
-* Compatible with **.NET Standard 2.0**, **.NET Core 3.1+** or **.NET 5+**
+* Compatible with **.NET Standard 2.0** or **.NET 6+**
 * **Rich IntelliSense** extended with contents of the official specification-documents
   * Meaning of elements/attributes
   * Required elements
@@ -187,7 +187,7 @@ order.EnsureValid(serializer);
 
 ### Setup Your Project
 
-BMEcatSharp and OpenTransSharp can be used in any **.NET Standard 2.0** compatible, **.NET Core 3.1+** or **.NET 5** project.
+BMEcatSharp and OpenTransSharp can be used in any **.NET Standard 2.0** compatible or **.NET 6+** project.
 
 **Note**: For **complete samples** of how to use this library, please see the code samples in this repository under
 
@@ -332,7 +332,7 @@ var serializerFactory = new OpenTransXmlSerializerFactory(options);
 
 #### Prerequisites
 
-* Ensure you have **.NET SDK 7.0+** installed (see https://dot.net)
+* Ensure you have **.NET SDK 8.0+** installed (see https://dot.net)
 
 * Checkout this repository to your computer
 
@@ -394,7 +394,7 @@ For **BMEcat®** see [LICENSE-BMEcat.md](LICENSE-BMEcat.md), and for **openTRANS
 
 **W3C®** files contain a license header.
 
-##### MPL 2.0 TLDR;
+#### MPL 2.0 TLDR;
 
 * **You can link this project statically or dynamically** with your program, regardless of your program's license
   * You can distribute this library with your software under the terms of the GPL licenses