Update README.md

Author: lofcz

README.md

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 # FastCloner
 
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-Fast deep cloning library for .NET 8+. Supports both deep and shallow cloning. Extensively tested, focused on performance and stability even on complicated object graphs. FastCloner is designed to work with as few gotchas as possible out of the box. The mapping is zero-config by default. Clone your objects and be done with it <em>fast</em>. FastCloner builds upon <a href="https://github.com/force-net/DeepCloner">DeepClone</a>.
+Fast deep cloning library, supporting anything from <code>.NET 4.6</code> to modern <code>.NET 8+</code>. Supports both deep and shallow cloning. Extensively tested, focused on performance and stability even on complicated object graphs. FastCloner is designed to work with as few gotchas as possible out of the box. The mapping is zero-config by default. Clone your objects and be done with it <em>fast</em>. FastCloner builds upon <a href="https://github.com/force-net/DeepCloner">DeepClone</a>.
 
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