docs: fix cached lookup module documentation

[TessaIO]

Fixes #17337 and #17212 (comment).

Description

Fixes Cached Lookup Module documentation

Release note

This PR Fixes Cached Lookup Module documentation

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This PR has:

• been self-reviewed.
  • using the concurrency checklist (Remove this item if the PR doesn't have any relation to concurrency.)
• added documentation for new or modified features or behaviors.
• a release note entry in the PR description.
• added Javadocs for most classes and all non-trivial methods. Linked related entities via Javadoc links.
• added or updated version, license, or notice information in licenses.yaml
• added comments explaining the "why" and the intent of the code wherever would not be obvious for an unfamiliar reader.
• added unit tests or modified existing tests to cover new code paths, ensuring the threshold for code coverage is met.
• added integration tests.
• been tested in a test Druid cluster.

[TessaIO]

/cc @Akshat-Jain

[Akshat-Jain]

Thanks @TessaIO for getting back to this! 🙌

While the changes are technically fine, I have a couple of nits related to formatting:

1. The JSON indentation seems incorrect. Can you please format the JSON like it's done in https://github.com/apache/druid/blob/master/docs/development/extensions-core/catalog.md, for example?
2. Can you please add space after : character? For example, "connectorConfig":{ should be changed to "connectorConfig": {. It's a minor comment, but helps with readability.

Thanks!

[Akshat-Jain]

Thanks @TessaIO for the contribution. LGTM!

[abhishekrb19]

thanks for the update! 👍