Add missing meta descriptions

[nlarew]

Adds missing meta descriptions generated by the Education AI Team\n\nSOURCE: https://docs.google.com/spreadsheets/d/1fdrjF4Ms9fMl96zLiLGsYD_V38rTfPLuKs5VQk4vz6E/edit?gid=1166644539

[netlify]

✅ Deploy Preview for docs-relational-migrator ready!

Name	Link
🔨 Latest commit	00c946e
🔍 Latest deploy log	https://app.netlify.com/sites/docs-relational-migrator/deploys/6801719007dacd0008b0fbe2
😎 Deploy Preview	https://deploy-preview-248--docs-relational-migrator.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.
Lighthouse	1 paths audited Performance: 39 (🔴 down 40 from production) Accessibility: 85 (🔴 down 13 from production) Best Practices: 75 (no change from production) SEO: 83 (no change from production) PWA: - View the detailed breakdown and full score reports

---

To edit notification comments on pull requests, go to your Netlify site configuration.