Adds link to nodejs discussions (#16780)

Adds link to nodejs discussions

Co-authored-by: Brendan Irvine-Broque <[email protected]>

Author: mikenomitch

src/content/docs/workers/runtime-apis/nodejs/index.mdx

@@ -70,6 +70,9 @@ This allows you to import packages that use these Node.js modules, even if certa
 
 For a full list of APIs supported, including information on which are mocked, see the [Node.js compatability matrix](https://workers-nodejs-compat-matrix.pages.dev).
 
+If an API you wish to use is missing and you want to suggest that Workers support it, please add a post or comment in the
+[Node.js APIs discussions category](https://github.com/cloudflare/workerd/discussions/categories/node-js-apis) on GitHub.
+
 ## Enable Node.js with Workers
 
 Add the [`nodejs_compat`](/workers/configuration/compatibility-dates/#nodejs-compatibility-flag) [compatibility flag](/workers/configuration/compatibility-dates/#nodejs-compatibility-flag) to your `wrangler.toml`: