Update README.md (#366)

Author: jbampton

README.md

@@ -227,7 +227,7 @@ Want to contribute to the project code or test your profile locally? Here's how
 
 ### Prerequisites
 
-- **Node.js**: Version 18.x or higher ([Download](https://nodejs.org/))
+- **Node.js**: Version 20.x or higher ([Download](https://nodejs.org/))
 - **npm**: Comes with Node.js
 - **Git**: For version control