Update README.md

Co-authored-by: Dominic Kim <style9595@gmail.com>

Author: Luke-Roy-IBM

README.md

@@ -28,7 +28,7 @@ The following Node.js runtime versions (with kind & image labels) are generated
 
 - Node.js 18 (`nodejs:18` & `openwhisk/action-nodejs-v18`)
 - Node.js 20 (`nodejs:20` & `openwhisk/action-nodejs-v20`)
-- Node.js 20 (`nodejs:24` & `openwhisk/action-nodejs-v24`)
+- Node.js 24 (`nodejs:24` & `openwhisk/action-nodejs-v24`)
 
 This README documents the build, customisation and testing of these runtime images.