Rename "Attribute macros" section

This renames this section to follow the attribute template. Although I
like the old title, since it describes what it does, I would prefer to
not make exceptions and stay consistent.

Author: ehuss

src/attributes.md

@@ -372,7 +372,7 @@ The following is an index of all built-in attributes.
 [`non_exhaustive`]: attributes/type_system.md#the-non_exhaustive-attribute
 [`panic_handler`]: panic.md#the-panic_handler-attribute
 [`path`]: items/modules.md#the-path-attribute
-[`proc_macro_attribute`]: procedural-macros.md#attribute-macros
+[`proc_macro_attribute`]: procedural-macros.md#the-proc_macro_attribute-attribute
 [`proc_macro_derive`]: macro.proc.derive
 [`proc_macro`]: procedural-macros.md#function-like-procedural-macros
 [`recursion_limit`]: attributes/limits.md#the-recursion_limit-attribute
@@ -385,7 +385,7 @@ The following is an index of all built-in attributes.
 [`used`]: abi.md#the-used-attribute
 [`warn`]: attributes/diagnostics.md#lint-check-attributes
 [`windows_subsystem`]: runtime.md#the-windows_subsystem-attribute
-[attribute macros]: procedural-macros.md#attribute-macros
+[attribute macros]: procedural-macros.md#the-proc_macro_attribute-attribute
 [block expressions]: expressions/block-expr.md
 [built-in attributes]: #built-in-attributes-index
 [derive macro helper attributes]: procedural-macros.md#derive-macro-helper-attributes

src/names/namespaces.md

@@ -134,7 +134,7 @@ It is still an error for a [`use` import] to shadow another macro, regardless of
 [Associated const declarations]: ../items/associated-items.md#associated-constants
 [Associated function declarations]: ../items/associated-items.md#associated-functions-and-methods
 [Associated type declarations]: ../items/associated-items.md#associated-types
-[Attribute macros]: ../procedural-macros.md#attribute-macros
+[Attribute macros]: ../procedural-macros.md#the-proc_macro_attribute-attribute
 [attributes]: ../attributes.md
 [bang-style macros]: ../macros.md
 [Block labels]: ../expressions/loop-expr.md#labelled-block-expressions

src/procedural-macros.md

@@ -229,7 +229,7 @@ A helper attribute for a derive macro is declared by adding its identifier to th
 > ```
 
 r[macro.proc.attribute]
-## Attribute macros
+## The `proc_macro_attribute` attribute
 
 r[macro.proc.attribute.intro]
 *Attribute macros* define new [outer attributes][attributes] which can be attached to [items], including items in [`extern` blocks], inherent and trait [implementations], and [trait definitions].
@@ -369,7 +369,7 @@ Note that neither declarative nor procedural macros support doc comment tokens
 (e.g. `/// Doc`), so they are always converted to token streams representing
 their equivalent `#[doc = r"str"]` attributes when passed to macros.
 
-[Attribute macros]: #attribute-macros
+[Attribute macros]: #the-proc_macro_attribute-attribute
 [Cargo's build scripts]: ../cargo/reference/build-scripts.html
 [Derive macros]: macro.proc.derive
 [Function-like macros]: #function-like-procedural-macros
@@ -405,3 +405,17 @@ their equivalent `#[doc = r"str"]` attributes when passed to macros.
 [type expressions]: types.md#type-expressions
 [type]: types.md
 [union]: items/unions.md
+
+<script>
+(function() {
+    var fragments = {
+        "#attribute-macros": "procedural-macros.html#the-proc_macro_attribute-attribute",
+    };
+    var target = fragments[window.location.hash];
+    if (target) {
+        var url = window.location.toString();
+        var base = url.substring(0, url.lastIndexOf('/'));
+        window.location.replace(base + "/" + target);
+    }
+})();
+</script>