docs: add a how-to guide for data tables

[dwilding]

This PR adds a how-to guide for rendering CSV data as tables. It covers the included csv-table directive and the non-included Sphinx DataTables extension.

Preview doc

[dwilding]

@AnneCYH I've started drafting the how-to guide for data tables. Want to get your input on something... On the how-to guides landing page (preview), I'm putting the new guide under "Optional features and workflows". However, this guide also covers non-interactive data tables, which are supported by default in the starter pack. I'm not totally satisfied with this approach - what's your opinion?

[AnneCYH]

Hi @dwilding , I agree it isn't entirely accurate.
I do think it should still be kept separate from the typical features used in the starter pack projects.

I would suggest rewording the description for that section instead to be clear that some are already ready to use by default.

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Additional features and workflows

As your documentation grows, you may need more advanced features to support richer content. This can include diagrams as code, automated API references, and data tables.

While some of these features are available by default in the starter pack, others may require additional extensions. The following guides will help you get started:

• Create diagrams as code using Mermaid
• Create data tables

[dwilding]

Thanks @AnneCYH, I like your suggestion! I've updated this PR to use that wording.

[medubelko]

LGTM. A few minor suggestions but nothing blocking.

[minaelee]

Thanks for this!

[AnneCYH]

Hey @dwilding , this looks good!

Just the typo (mentioned by @minaelee ) and also fixing the merge conflict for the index file.

Thanks for this!

[dwilding]

Thanks @minaelee, @medubelko, @AnneCYH! I've made updates from all feedback. This is ready to merge after a tick from Minae

[minaelee]

Ty!