Update custom-db.mdx

[nick-gagliardi]

Description

References

https://auth0team.atlassian.net/jira/software/c/projects/DOCS/boards/2571?selectedIssue=DOCS-5301

Testing

Checklist

• [x ] I've read and followed CONTRIBUTING.md.
• [ x] I've tested the site build for this change locally.
• [ x] I've made appropriate docs updates for any code or config changes.
• [ x] I've coordinated with the Product Docs and/or Docs Management team about non-trivial changes.

[github-actions]

Summary

Status	Count
🔍 Total	12
✅ Successful	2
⏳ Timeouts	0
🔀 Redirected	0
👻 Excluded	10
❓ Unknown	0
🚫 Errors	0
⛔ Unsupported	0
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