Update node-on-pages.md (#2447)

_pages/pages/documentation/node-on-pages.md

@@ -26,19 +26,19 @@ See [npm-ci](https://docs.npmjs.com/cli/ci) and [npm-install](https://docs.npmjs
 
 ## Specifying a Node version
 
-Pages only supports active and maintenance LTS (Long Term Support) [Node releases](https://github.com/nodejs/release#release-schedule), the default version is currently v16.x (gallium).
+Pages only supports active and maintenance LTS (Long Term Support) [Node releases](https://github.com/nodejs/release#release-schedule), the default version is currently v18.x (hydrogen).
 
 You can specify a different version than the default by providing a file named `.nvmrc` at the root of your repository containing the desired version of Node. However, if an unsupported version is specified, the build will fail with a helpful error message. 
 
 ### Examples
-If the current active and maintenance LTS release versions are 18 and 16:
+If the current active and maintenance LTS release versions are 20 and 18:
 
 | .nvmrc | node version used |
 |:------:|:-----------------:|
-| none | `16` (latest) |
-| `16.15.1` | `16.15.1` |
-| `19.x` | fail |
-| `14.x` | fail |
+| none | `18` (latest) |
+| `18.19.0` | `18.19.0` |
+| `21.x` | fail |
+| `16.x` | fail |
 
 See [.nvmrc](https://github.com/nvm-sh/nvm#nvmrc) for details on how to specify node versions.