[Docs Bug 🐞 report]: Missing docs on secrets (and other resources?)

[relativityboy]

Describe the bug you found in LocalStack Docs.

See localstack/localstack#12177 for details.

Issue requested by @alexrashed

Attach any resources that can help us understand the issue.

See localstack/localstack#12177 for details

Code of Conduct

• I agree to follow this project's Code of Conduct

[quetzalliwrites]

Thank you @relativityboy for creating this ticket!