Docs should explain that djangorestframework_camel_case needs installing to use CAMEL_CASE

[pjrobertson]

Describe the bug

EDIT: Scratch that, I didn't realise djangorestframework_camel_case was its own package.

Docs should explain that djangorestframework_camel_case would need to be installed to use 'CAMEL_CASE'

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OLD ISSUE BELOW:

Import error when using camel_case postprocessor.

To Reproduce
Follow the docs to set CAMELIZE_NAME and add the camel_case postprocessor hooks:

  # Camelize names like operationId and path parameter names
    # Camelization of the operation schema itself requires the addition of
    # 'drf_spectacular.contrib.djangorestframework_camel_case.camelize_serializer_fields'
    # to POSTPROCESSING_HOOKS
    'CAMELIZE_NAMES': False,

Settings.py:

...
    'CAMELIZE_NAMES': True,
    'POSTPROCESSING_HOOKS': ['drf_spectacular.contrib.djangorestframework_camel_case.camelize_serializer_fields'],
...

2. Try to load up the /redoc/ api view.
3. See the error: ModuleNotFoundError: No module named 'djangorestframework_camel_case'

I think the code should read:

 from .util import camelize, camelize_re, underscore_to_camel

[tfranzel]

Hi @pjrobertson. Improved the doc. The flag itself does not depend on that package, but the hook does. A fine distinction. That should make it clearer

[pjrobertson]

Thanks @tfranzel! Your attention to detail, and care for the docs is incredible!