Auto merge of #30271 - steveklabnik:reorder_book, r=aturon

This ordering was significantly more confusing.

Author: bors

src/doc/book/SUMMARY.md

@@ -5,18 +5,6 @@
     * [Guessing Game](guessing-game.md)
     * [Dining Philosophers](dining-philosophers.md)
     * [Rust Inside Other Languages](rust-inside-other-languages.md)
-* [Effective Rust](effective-rust.md)
-    * [The Stack and the Heap](the-stack-and-the-heap.md)
-    * [Testing](testing.md)
-    * [Conditional Compilation](conditional-compilation.md)
-    * [Documentation](documentation.md)
-    * [Iterators](iterators.md)
-    * [Concurrency](concurrency.md)
-    * [Error Handling](error-handling.md)
-    * [Choosing your Guarantees](choosing-your-guarantees.md)
-    * [FFI](ffi.md)
-    * [Borrow and AsRef](borrow-and-asref.md)
-    * [Release Channels](release-channels.md)
 * [Syntax and Semantics](syntax-and-semantics.md)
     * [Variable Bindings](variable-bindings.md)
     * [Functions](functions.md)
@@ -54,6 +42,18 @@
     * [Macros](macros.md)
     * [Raw Pointers](raw-pointers.md)
     * [`unsafe`](unsafe.md)
+* [Effective Rust](effective-rust.md)
+    * [The Stack and the Heap](the-stack-and-the-heap.md)
+    * [Testing](testing.md)
+    * [Conditional Compilation](conditional-compilation.md)
+    * [Documentation](documentation.md)
+    * [Iterators](iterators.md)
+    * [Concurrency](concurrency.md)
+    * [Error Handling](error-handling.md)
+    * [Choosing your Guarantees](choosing-your-guarantees.md)
+    * [FFI](ffi.md)
+    * [Borrow and AsRef](borrow-and-asref.md)
+    * [Release Channels](release-channels.md)
 * [Nightly Rust](nightly-rust.md)
     * [Compiler Plugins](compiler-plugins.md)
     * [Inline Assembly](inline-assembly.md)