Add [email protected] documentation

[bbasata]

Draft.

[github-actions]

Vercel Previews Deployed

Name	Status	Preview	Updated (UTC)
Dev Portal	✅ Ready (Inspect)	Visit Preview	Wed Mar 26 19:28:35 UTC 2025
Unified Docs API	✅ Ready (Inspect)	Visit Preview	Wed Mar 26 19:23:30 UTC 2025

[github-actions]

Broken Link Checker

No broken links found! 🎉

[RubenSandwich]

@bbasata I looked at the link checker error code and it was:

Caused by:
    0: error sending request for url (http://content/terraform-plugin-testing/v1.13.x/data/plugin-testing-nav-data.json)
    1: client error (Connect)
    2: dns error: failed to lookup address information: Temporary failure in name resolution
    3: failed to lookup address information: Temporary failure in name resolution

This is a bug in our link checker code here: https://github.com/hashicorp/web-unified-docs/blob/main/.github/workflows/build-pr-preview.yml#L40. I will make a PR soon to fix it.

Edit: Fix is now merged in

[RubenSandwich]

@bbasata the link checker code now works, apologizes on the delay we found another problem while we were fixing that that had to be solved first.