docs: Added starter dev notes on push to hugging face hub

[nabinchha]

Adds a dev note post to cover push_to_hub feature of Data Designer

[greptile-apps]

Greptile Summary

Added comprehensive developer documentation for the push_to_hub feature, which allows users to upload generated datasets to Hugging Face Hub. The guide covers the complete workflow from dataset creation to pushing, explains processor outputs and schema transformations, details the auto-generated dataset card, and demonstrates reproducibility through config round-tripping.

Key additions:

• Complete usage guide with practical code examples
• Four supporting diagrams (hero, pipeline, round-trip, schema transform)
• Author profile for Nabin Mulepati
• Navigation entry in mkdocs.yml

The documentation is accurate, well-structured, and aligns with existing dev notes style. All code examples were verified against actual API signatures in the codebase.

Confidence Score: 5/5

• This PR is safe to merge with no risk
• Documentation-only PR with no code changes. All API references verified against actual implementation, images are properly referenced, author metadata is consistent, and navigation is correctly configured.
• No files require special attention

Important Files Changed

Filename	Overview
docs/devnotes/.authors.yml	Added author entry for Nabin Mulepati with GitHub profile information
docs/devnotes/posts/push-datasets-to-hugging-face-hub.md	Comprehensive guide explaining push_to_hub feature with code examples and workflow explanations
mkdocs.yml	Added new dev notes page to navigation structure

_{Last reviewed commit: 031ad32}

[dhruvnathawani]

Did you use AI for the images?
LGTM