Organize the 2024 chapters into sub-chapters by category

src/SUMMARY.md

@@ -39,27 +39,33 @@
 ## Rust 2024
 
 - [Rust 2024 🚧](rust-2024/index.md)
-  - [Additions to the prelude](rust-2024/prelude.md)
-  - [Add `IntoIterator` for `Box<[T]>`](rust-2024/intoiterator-box-slice.md)
-  - [Newly unsafe functions](rust-2024/newly-unsafe-functions.md)
-  - [`unsafe_op_in_unsafe_fn` warning](rust-2024/unsafe-op-in-unsafe-fn.md)
-  - [RPIT lifetime capture rules](rust-2024/rpit-lifetime-capture.md)
-  - [Disallow references to `static mut`](rust-2024/static-mut-references.md)
-  - [Cargo: Rust-version aware resolver](rust-2024/cargo-resolver.md)
-  - [Cargo: Table and key name consistency](rust-2024/cargo-table-key-names.md)
-  - [Cargo: Reject unused inherited default-features](rust-2024/cargo-inherited-default-features.md)
-  - [Rustfmt: Combine all delimited exprs as last argument](rust-2024/rustfmt-overflow-delimited-expr.md)
-  - [Rustfmt: Style edition](rust-2024/rustfmt-style-edition.md)
-  - [Rustfmt: Raw identifier sorting](rust-2024/rustfmt-raw-identifier-sorting.md)
-  - [Rustfmt: Version sorting](rust-2024/rustfmt-version-sorting.md)
-  - [`gen` keyword](rust-2024/gen-keyword.md)
-  - [Macro fragment specifiers](rust-2024/macro-fragment-specifiers.md)
-  - [Missing macro fragment specifiers](rust-2024/missing-macro-fragment-specifiers.md)
-  - [Never type fallback change](rust-2024/never-type-fallback.md)
-  - [Unsafe `extern` blocks](rust-2024/unsafe-extern.md)
-  - [Unsafe attributes](rust-2024/unsafe-attributes.md)
-  - [Rustdoc combined tests](rust-2024/rustdoc-doctests.md)
-  - [Rustdoc nested `include!` change](rust-2024/rustdoc-nested-includes.md)
-  - [Reserved syntax](rust-2024/reserved-syntax.md)
-  - [`if let` temporary scope](rust-2024/temporary-if-let-scope.md)
-  - [Tail expression temporary scope](rust-2024/temporary-tail-expr-scope.md)
+  - [Language](rust-2024/language.md)
+    - [RPIT lifetime capture rules](rust-2024/rpit-lifetime-capture.md)
+    - [`if let` temporary scope](rust-2024/temporary-if-let-scope.md)
+    - [Tail expression temporary scope](rust-2024/temporary-tail-expr-scope.md)
+    - [Match ergonomics](rust-2024/match-ergonomics.md)
+    - [Unsafe `extern` blocks](rust-2024/unsafe-extern.md)
+    - [Unsafe attributes](rust-2024/unsafe-attributes.md)
+    - [`unsafe_op_in_unsafe_fn` warning](rust-2024/unsafe-op-in-unsafe-fn.md)
+    - [Disallow references to `static mut`](rust-2024/static-mut-references.md)
+    - [Never type fallback change](rust-2024/never-type-fallback.md)
+    - [Macro fragment specifiers](rust-2024/macro-fragment-specifiers.md)
+    - [Missing macro fragment specifiers](rust-2024/missing-macro-fragment-specifiers.md)
+    - [`gen` keyword](rust-2024/gen-keyword.md)
+    - [Reserved syntax](rust-2024/reserved-syntax.md)
+  - [Standard library](rust-2024/standard-library.md)
+    - [Additions to the prelude](rust-2024/prelude.md)
+    - [Add `IntoIterator` for `Box<[T]>`](rust-2024/intoiterator-box-slice.md)
+    - [Newly unsafe functions](rust-2024/newly-unsafe-functions.md)
+  - [Cargo](rust-2024/cargo.md)
+    - [Cargo: Rust-version aware resolver](rust-2024/cargo-resolver.md)
+    - [Cargo: Table and key name consistency](rust-2024/cargo-table-key-names.md)
+    - [Cargo: Reject unused inherited default-features](rust-2024/cargo-inherited-default-features.md)
+  - [Rustdoc](rust-2024/rustdoc.md)
+    - [Rustdoc combined tests](rust-2024/rustdoc-doctests.md)
+    - [Rustdoc nested `include!` change](rust-2024/rustdoc-nested-includes.md)
+  - [Rustfmt](rust-2024/rustfmt.md)
+    - [Rustfmt: Style edition](rust-2024/rustfmt-style-edition.md)
+    - [Rustfmt: Combine all delimited exprs as last argument](rust-2024/rustfmt-overflow-delimited-expr.md)
+    - [Rustfmt: Raw identifier sorting](rust-2024/rustfmt-raw-identifier-sorting.md)
+    - [Rustfmt: Version sorting](rust-2024/rustfmt-version-sorting.md)

src/rust-2024/cargo.md

@@ -0,0 +1,3 @@
+# Cargo
+
+The following chapters detail changes to Cargo in the 2024 Edition.

src/rust-2024/language.md

@@ -0,0 +1,3 @@
+# Language
+
+The following chapters detail changes to the language in the 2024 Edition.

src/rust-2024/match-ergonomics.md

@@ -0,0 +1,12 @@
+# Match ergonomics
+
+🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
+More information may be found in the tracking issue at <https://github.com/rust-lang/rust/issues/131414>.
+
+**This is a placeholder, docs coming soon!**
+
+## Summary
+
+## Details
+
+## Migration

src/rust-2024/rustdoc.md

@@ -0,0 +1,3 @@
+# Rustdoc
+
+The following chapters detail changes to Rustdoc in the 2024 Edition.

src/rust-2024/rustfmt.md

@@ -0,0 +1,3 @@
+# Rustfmt
+
+The following chapters detail changes to Rustfmt in the 2024 Edition.

src/rust-2024/standard-library.md

@@ -0,0 +1,3 @@
+# Standard library
+
+The following chapters detail changes to the standard library in the 2024 Edition.