chore(main): release 1.3.0

[github-actions]

🤖 I have created a release beep boop

1.3.0 (2024-07-20)

Features

• add AO section, inline macro expansion sections (3e9b49a)
• add gtd 1.0.0 spec candidate (39ed79c)
• create design-decisions document (4bd49a8)
• semantics.norg: add information about macro return values (8c0656b)
• semantics.norg: write a few more sections (6c01b55)
• semantics: add entry about &...& expansion overrides (f4d696e)
• semantics: add entry about tables (35a52c4)
• semantics: add more entries w.r.t inbuilt macros and stdlib (465a04f)
• semantics: add several sections (9c98773)
• start work on the semantics document (b7cd95c)
• stdlib.norg: implement #eval macro (b7c55e4)

Bug Fixes

• be more specific about cell notation (0205e74)
• broken syntax in stdlib.norg (1fab11d)
• design-decisions: typo, |verbatim|->|verbatim|` (ac31109)
• remove name and color macros, as they're superceded by the new + syntax (896094b)

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