[FR] Add keypoint labels to COCO dataset in FiftyOne dataset zoo

I cannot find documenation for downloading, using and visualizing the COCO keypoint dataset

URL(s) with the issue:

https://voxel51.com/docs/fiftyone/user_guide/dataset_creation/index.html

Description of proposal (what needs changing):

I have been trying to download the Humanpose estimation dataset using Keypoints from coco dataset. I am not able to find documentation and examples to do the same. It would be nice to have documentation for downloading, visualizing and analysing the key point annotations from coco dataset.

Willingness to contribute

The FiftyOne Community encourages documentation contributions. Would you or another member of your organization be willing to contribute a fix for this documentation issue to the FiftyOne codebase?

• Yes. I can contribute a documentation fix independently.
• Yes. I would be willing to contribute a document fix with guidance from the FiftyOne community.
• No. I cannot contribute a documentation fix at this time.