[move 2024] Method syntax docs (MystenLabs#16760)

## Description 

Book chapter for methods

## Test Plan 

- 👓 

---
If your changes are not user-facing and do not break anything, you can
skip the following section. Otherwise, please briefly describe what has
changed under the Release Notes section.

### Type of Change (Check all that apply)

- [ ] protocol change
- [ ] user-visible impact
- [ ] breaking change for a client SDKs
- [ ] breaking change for FNs (FN binary must upgrade)
- [ ] breaking change for validators or node operators (must upgrade
binaries)
- [ ] breaking change for on-chain data layout
- [ ] necessitate either a data wipe or data migration

### Release notes

---------

Co-authored-by: ronny-mysten <[email protected]>

external-crates/move/crates/move-compiler/tests/move_2024/naming/use_fun_shadows.move

@@ -0,0 +1,24 @@
+module a::m {
+    public struct X() has copy, drop;
+    public fun u(_: &X): u64 { 0 }
+    public fun b(_: &X): bool { false }
+}
+
+module b::other {
+    use a::m::X;
+
+    use fun a::m::u as X.f;
+
+    fun example(x: &X) {
+        let _: u64 = x.f();
+        {
+            use a::m::b as f;
+            let _: bool = x.f();
+        };
+        let _: u64 = x.f();
+        {
+            use fun a::m::b as X.f;
+            let _: bool = x.f();
+        }
+    }
+}

external-crates/move/crates/move-compiler/tests/move_2024/typing/by_value_method.move

@@ -0,0 +1,14 @@
+module a::m {
+    public struct X() has copy, drop;
+    public fun by_val(_: X) {}
+    public fun by_ref(_: &X) {}
+    public fun by_mut(_: &mut X) {}
+
+    public struct Y { x: X }
+    public fun drop_y(y: Y) { let Y { x: _ } = y; }
+
+    fun example(y: Y) {
+        y.x.by_val();
+        y.drop_y();
+    }
+}

external-crates/move/documentation/book/src/SUMMARY.md

@@ -2,11 +2,11 @@
 
 [Introduction](introduction.md)
 
-## Getting Started
+# Getting Started
 
 - [Modules](modules.md)
 
-## Primitive Types
+# Primitive Types
 
 - [Integers](integers.md)
 - [Bool](bool.md)
@@ -15,7 +15,7 @@
 - [References](references.md)
 - [Tuples and Unit](tuples.md)
 
-## Basic Concepts
+# Basic Concepts
 
 - [Local Variables and Scopes](variables.md)
 - [Equality](equality.md)
@@ -33,14 +33,15 @@
 - [Packages](packages.md)
 - [Unit Tests](unit-testing.md)
 
-## Advanced Concepts
+# Advanced Concepts
 
+- [Method Syntax](method-syntax.md)
 - [Index Syntax Methods](index-syntax.md)
 
-## Reference
+# Reference
 
 - [Coding Conventions](coding-conventions.md)
 
-## Deprecated
+# Deprecated
 
 - [Friends](friends.md)

external-crates/move/documentation/book/src/functions.md

@@ -9,7 +9,7 @@ Functions are declared with the `fun` keyword followed by the function name, typ
 parameters, a return type, and finally the function body.
 
 ```text
-<visibility>? <entry>? fun <identifier><[type_parameters: constraint],*>([identifier: type],*): <return_type> <acquires [identifier],*> <function_body>
+<visibility>? <entry>? fun <identifier><[type_parameters: constraint],*>([identifier: type],*): <return_type> <function_body>
 ```
 
 For example