Rollup merge of #44980 - steveklabnik:update-books, r=estebank

update books for next release

Also fixes some stdlib links to the reference which have changed.

First step in https://forge.rust-lang.org/release-process.html, doing it a few days early 😄

book @ 08e79609

-Subproject commit d09c9e8144ed32170b7596abb145ade8b097acaf
+Subproject commit 08e79609ce88583fa7286157dfe497486a09fabe

nomicon @ 0ee3f726

-Subproject commit a4322ccb289a43cc238d4536982f184a3eec9ba7
+Subproject commit 0ee3f7265e9d09746d901cef6f1f300baff1d923

reference @ 36adc6ae

-Subproject commit 266d429a48468371d2d90669f6a30dd659bb4bdb
+Subproject commit 36adc6ae504c6e0343ab5d7b3871f0a2a71236da

src/libcore/ops/deref.rs

@@ -40,7 +40,7 @@
 /// [book]: ../../book/second-edition/ch15-02-deref.html
 /// [`DerefMut`]: trait.DerefMut.html
 /// [more]: #more-on-deref-coercion
-/// [ref-deref-op]: ../../reference/expressions.html#the-dereference-operator
+/// [ref-deref-op]: ../../reference/expressions/operator-expr.html#the-dereference-operator
 /// [ref-deref-trait]: ../../reference/the-deref-trait.html
 /// [type coercions]: ../../reference/type-coercions.html
 ///
@@ -127,7 +127,7 @@ fn deref(&self) -> &T { *self }
 /// [book]: ../../book/second-edition/ch15-02-deref.html
 /// [`Deref`]: trait.Deref.html
 /// [more]: #more-on-deref-coercion
-/// [ref-deref-op]: ../../reference/expressions.html#the-dereference-operator
+/// [ref-deref-op]: ../../reference/expressions/operator-expr.html#the-dereference-operator
 /// [ref-deref-trait]: ../../reference/the-deref-trait.html
 /// [type coercions]: ../../reference/type-coercions.html
 ///

src/libcore/ops/mod.rs

@@ -150,7 +150,7 @@
 //! [`Sub`]: trait.Sub.html
 //! [`Mul`]: trait.Mul.html
 //! [`clone`]: ../clone/trait.Clone.html#tymethod.clone
-//! [operator precedence]: ../../reference/expressions.html#operator-precedence
+//! [operator precedence]: ../../reference/expressions/operator-expr.html#operator-precedence
 
 #![stable(feature = "rust1", since = "1.0.0")]