Rollup merge of #24743 - geofft:trpl-macros-links, r=steveklabnik

 r? @steveklabnik

Author: Manishearth

src/doc/trpl/macros.md

@@ -57,8 +57,7 @@ let x: Vec<u32> = {
 We can implement this shorthand, using a macro: [^actual]
 
 [^actual]: The actual definition of `vec!` in libcollections differs from the
-           one presented here, for reasons of efficiency and reusability. Some
-           of these are mentioned in the [advanced macros chapter][].
+           one presented here, for reasons of efficiency and reusability.
 
 ```rust
 macro_rules! vec {
@@ -106,7 +105,7 @@ These have [their own little grammar] within the language.
 
 The matcher `$x:expr` will match any Rust expression, binding that syntax tree
 to the ‘metavariable’ `$x`. The identifier `expr` is a ‘fragment specifier’;
-the full possibilities are enumerated in the [advanced macros chapter][].
+the full possibilities are enumerated later in this chapter.
 Surrounding the matcher with `$(...),*` will match zero or more expressions,
 separated by commas.
 
@@ -566,7 +565,7 @@ When this library is loaded with `#[macro_use] extern crate`, only `m2` will
 be imported.
 
 The Rust Reference has a [listing of macro-related
-attributes](../reference.html#macro--and-plugin-related-attributes).
+attributes](../reference.html#macro-related-attributes).
 
 # The variable `$crate`