"category" query string option is not honored in Swagger documentation

[omiras]

Analysis

The Swagger documentation needs to be updated to inform REST API consumers about the availability of the categories filter.

Currently, it is possible to use a GET request to retrieve questions from specific categories, such as CSS. For example:
[Example Request](https://codequestapi.onrender.com/api/v1/questions/random?amount=1&categories=css)

However, this functionality is not documented in Swagger.

Could someone address this issue?

Additionally, the documentation should include a list of available categories (e.g., css, angular, etc.).

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Acceptance Criteria

• Swagger documentation supports GET requests using the _categories_ query parameter.
• Swagger documentation provides a list of available categories to guide users.