✏️ Fix grammar and typos in docs

[YuriiMotov]

Description

Fixed typos and grammar mistakes in docs.

AI Disclaimer

I used Claude Code to find and fix mistakes, but carefully reviewed all corrections and asked to rephrase a couple of sentences to make them easier to read.

Checklist

• This PR links to a GitHub Discussion for the proposed code change.
• I added tests for the change.
• The new or updated tests fail on the main branch and pass on this PR.
• Coverage stays at 100%.
• The documentation explains the change if needed.

[github-actions]

📝 Docs preview

Last commit 2555726 at: https://cceabba1.sqlmodel.pages.dev

Modified Pages

• https://cceabba1.sqlmodel.pages.dev/advanced/decimal/ - (before)
• https://cceabba1.sqlmodel.pages.dev/advanced/uuid/ - (before)
• https://cceabba1.sqlmodel.pages.dev/databases/ - (before)
• https://cceabba1.sqlmodel.pages.dev/db-to-code/ - (before)
• https://cceabba1.sqlmodel.pages.dev/features/ - (before)
• https://cceabba1.sqlmodel.pages.dev/help/ - (before)
• https://cceabba1.sqlmodel.pages.dev/install/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/automatic-id-none-refresh/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/code-structure/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/connect/create-connected-tables/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/connect/read-connected-data/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/connect/update-data-connections/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/create-db-and-table-with-db-browser/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/create-db-and-table/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/delete/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/fastapi/multiple-models/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/fastapi/read-one/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/fastapi/response-model/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/fastapi/session-with-dependency/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/fastapi/simple-hero-api/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/fastapi/teams/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/fastapi/tests/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/fastapi/update-extra-data/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/indexes/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/insert/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/limit-and-offset/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/many-to-many/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/many-to-many/create-data/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/many-to-many/create-models-with-link/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/many-to-many/link-with-extra-fields/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/many-to-many/update-remove-relationships/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/one/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/relationship-attributes/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/relationship-attributes/back-populates/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/relationship-attributes/cascade-delete-relationships/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/relationship-attributes/define-relationships-attributes/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/relationship-attributes/read-relationships/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/select/ - (before)
• https://cceabba1.sqlmodel.pages.dev/tutorial/where/ - (before)

[YuriiMotov]

Added some clarifications

[tiangolo]

Nice, thank you! 🙌