It's not clear that @searchable does not work with @hasmany and @belongsto in the legacy docs or in the latest docs

**Describe the content issue**:
There is a bullet point `@searchable is not compatible with the @connection directive` under the `Known-limitations` section of the page below but it doesn't mention any other limitations such as whether or not `@searchable` works with `@hasmany` and `@belongsto`.

Would it make sense to update this list so that readers know explicitly what is possible or not?

**URL page where content issue is**:
https://docs.amplify.aws/cli-legacy/graphql-transformer/searchable/#known-limitations

Start at the Known-limitations section of the linked legacy GraphQL Transformer documentation page and compare it with the latest documentation. Verify whether @searchable works with @hasmany and @belongsto, then update the limitations wording so the supported and unsupported combinations are explicit in both places.

Written by the indexing model from the issue text.