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

This PR adds a new dev note documenting the push_to_hub feature, covering the full upload pipeline, processor promotion to HF dataset configs, auto-generated dataset cards, auth, and the round-trip reproducibility story. Previously flagged issues (multiple <!-- more --> markers, incomplete template path) are resolved in the current HEAD.

• P1 — accidental date change in text-to-sql.md: the frontmatter date was changed from 2026-03-11 to 2026-04-14 with no other edits to that file; this would corrupt the MkDocs blog listing sort order and RSS feed publication date for an already-published post.

Confidence Score: 4/5

• Safe to merge after reverting the accidental date change in text-to-sql.md.
• One P1 finding: the text-to-sql.md date was changed from 2026-03-11 to 2026-04-14 with no other edits, which would misrepresent the original publication date in the blog index and RSS feed. The new push-to-hub post itself is clean — previously flagged issues are resolved.
• docs/devnotes/posts/text-to-sql.md — revert the date change before merging.

Important Files Changed

Filename	Overview
docs/devnotes/posts/push-datasets-to-hugging-face-hub.md	New dev note covering push_to_hub feature; well-structured with a single marker, full template path, and clear code examples. Previously flagged issues appear resolved.
docs/devnotes/posts/text-to-sql.md	Date changed from 2026-03-11 to 2026-04-14 with no other modifications — appears to be an accidental edit that would corrupt the blog index sort order and RSS feed for this previously-published post.
docs/devnotes/.authors.yml	Adds co-author davanstrien (Daniel van Strien from Hugging Face) — straightforward and correct.
mkdocs.yml	Adds the new post to the nav in the correct most-recent-first position.
docs/devnotes/posts/assets/push-datasets-to-hugging-face-hub/push-to-hub-hero.png	New image asset for the blog post.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[DataDesigner.create\nor saved artifact folder] --> B[push_to_hub / push_to_hub_from_folder]
    B --> C1[1. Upload README.md\nauto-generated dataset card]
    C1 --> C2[2. Upload data/*.parquet\nremapped from parquet-files/]
    C2 --> C3[3. Upload images/*\nskipped if no image columns]
    C3 --> C4[4. Upload processor dirs\ne.g. conversations/*.parquet]
    C4 --> C5[5. Upload builder_config.json\nfull pipeline definition]
    C5 --> C6[6. Upload metadata.json\npaths rewritten for HF layout]
    C6 --> D[Live HF Dataset Repo\neach step = one commit]
    D --> E1[Dataset Viewer\nbrowsable immediately]
    D --> E2[Streaming via parquet]
    D --> E3[Round-trip reproduce\nfrom_config HF URL]

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Prompt To Fix All With AI

This is a comment left during a code review.
Path: docs/devnotes/posts/text-to-sql.md
Line: 2

Comment:
**Unintentional date change on existing post**

This PR changes the `text-to-sql.md` publication date from `2026-03-11` to `2026-04-14`. The text-to-sql post itself has no other changes, so this looks like an accidental edit. The MkDocs Material blog plugin uses the frontmatter date for its listing index sort order and RSS feed, so bumping this date would move the text-to-sql post above any other posts dated between March 11 and April 14 in the blog index — misrepresenting the original publication date to readers and feed subscribers.

```suggestion
date: 2026-03-11
```

How can I resolve this? If you propose a fix, please make it concise.

_{Reviews (12): Last reviewed commit: "fix date for text-to-sql" | Re-trigger Greptile}

[dhruvnathawani]

Did you use AI for the images?
LGTM

[nabinchha]

Did you use AI for the images? LGTM

@dhruvnathawani, yes!

[github-actions]

Docs preview: https://5f89bec9.dd-docs-preview.pages.dev

Notebook tutorials are placeholder-only in previews.

[dhruvnathawani]

LGTM