Update README.md

Author: RealDotNetDave

README.md

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 ![Spargine 8](docs/Graphics/SPARGINE-8-BANNER.png)
 
 Open-source .NET assemblies from dotNetTips.com and **<a href="https://dotnettips.wordpress.com/about/" target="_blank">David (dotNetDave) McCarter</a>**. 
-This repository hosts the dotNetTips.Spargine codebase for .NET 8. Spargine encompasses foundational code that I’ve been building and perfecting since the early days of .NET 2. In addition to the core library, it includes a dedicated library to support efficient testing and another designed specifically for benchmarking your code, helping you achieve optimal performance with ease.
+This repository hosts the **dotNetTips.Spargine** codebase for .NET 8 & 9. Spargine encompasses foundational code that I’ve been building and perfecting since the early days of .NET 2. In addition to the core library, it includes a dedicated library to support efficient testing and another designed specifically for benchmarking your code, helping you achieve optimal performance with ease.
 
 Please support this project by <a href="https://github.com/sponsors/RealDotNetDave" target="_blank">**clicking here**</a>. 
 <a href="https://dotnettips.wordpress.com/spargine/" target="_blank">Click here</a> to visit the Spargine page on dotNetTips.com. Much of this code is also documented on <a href="https://dotnettips.wordpress.com/category/open-source/spargine/" target="_blank">**dotNetTips.com**</a>.