Update README.md

Author: philsturgeon

README.md

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-# OpenAPI.Tools [![](https://img.shields.io/badge/Buy%20us%20a%20tree-%F0%9F%8C%B3-lightgreen)](https://ecologi.com/philsturgeon)
+# OpenAPI.Tools [![](https://img.shields.io/badge/Buy%20us%20a%20tree-%F0%9F%8C%B3-lightgreen)](https://shop.protect.earth/products/tree)
 
-A collection of Editors, Linters, Parsers, Code Generators, Documentation, Testing, and Schema/Data validation tools for OpenAPI v2 and v3 (but mostly v3).
+A collection of Editors, Linters, Parsers, Code Generators, Documentation, Testing, and Schema/Data validation tools for all modern versions of OpenAPI.
 
 ## Contributing