Merge pull request #151 from bobbrodie/7.0.x

Prepare v7.0.0

Author: bobbrodie

README.md

@@ -22,7 +22,7 @@ To contribute to this project, please fork and submit a pull request.
 
 ## Supported Environments
 
-The BitPay NodeJS client supports Node.js 16 and higher.
+The BitPay NodeJS client supports Node.js 20 and higher.
 
 ## License