Documentation: The "Exclude a taxonomy term from sitemap" code doesn't do anything

Please give us a description of the issue

On https://github.com/Yoast/developer/blob/main/docs/features/xml-sitemaps/api.md you give a function for removing taxonomy terms from site maps.

I've aadded the following code to my theme functions.php:

function sitemap_exclude_terms( $terms ) {
return [208];
}

add_filter( 'wpseo_exclude_from_sitemap_by_term_ids', 'sitemap_exclude_terms' );

Posts in category ID 208 are still appearing on my post-sitemap.xml. I know it's not a caching issue because I subsequently added a test post and it appeared in the sitemap immediately. I have tested this with numerous different categories and with including single or multiple IDs in the array.

The code should probably either be corrected or removed.

• [X ] I've read and understood the contribution guidelines.
• [X ] I've searched for any related issues and avoided creating a duplicate issue.

UPDATE: The only way I was able to actually successfully filter the sitemap was using the wpseo_sitemap_entry filter. Filters I tried that didn't seem to ever run: wpseo_exclude_from_sitemap_by_term_ids, wpseo_sitemap_exclude_post, and a query with wpseo_sitemap_posts_query. Some sort of clearer documentation might have saved me some time.

Start with docs/features/xml-sitemaps/api.md and review the documented wpseo_exclude_from_sitemap_by_term_ids example against the reported behavior. Investigate the related filters named in the issue, including wpseo_sitemap_entry, then update or remove the guidance so the documented way to exclude taxonomy terms is accurate and testable.