Documentation for new `datasets[].columns[]`.

[Jeadie]

🗣 Description

• Documentation needed for new datasets[].columns[] DX.

  🔨 Related Issues

• https://github.com/spiceai/spiceai/pull/3336
• https://github.com/spiceai/spiceai/issues/3317

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Name	Status	Preview	Comments	Updated (UTC)
spiceai-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Nov 6, 2024 3:49am