align minimum version in README with Docker container

Author: albertcansado

README.md

@@ -37,7 +37,7 @@ npm run docs:preview
 
 ### Prerequisites
 
-- `node` (version 18 or newer) - JavaScript runtime required by Vite/VitePress
+- `node` (version 22 or newer) - JavaScript runtime required by Vite/VitePress
 - `npm` - Package manager (included with most Node.js installations)
 - `git` - Required to install `@cakephp/docs-skeleton` from GitHub