Update books

ehuss · ehuss · commit 2350e3f37576 · 2020-10-14T14:55:41.000-07:00
diff --git a/src/doc/book b/src/doc/book
@@ -1 +1 @@
-Subproject commit cb28dee95e5e50b793e6ba9291c5d1568d3ad72e
+Subproject commit 451a1e30f2dd137aa04e142414eafb8d05f87f84
diff --git a/src/doc/embedded-book b/src/doc/embedded-book
@@ -1 +1 @@
-Subproject commit dd310616308e01f6cf227f46347b744aa56b77d9
+Subproject commit 79ab7776929c66db83203397958fa7037d5d9a30
diff --git a/src/doc/reference b/src/doc/reference
@@ -1 +1 @@
-Subproject commit 56a13c082ee90736c08d6abdcd90462517b703d3
+Subproject commit 1b78182e71709169dc0f1c3acdc4541b6860e1c4
diff --git a/src/doc/rust-by-example b/src/doc/rust-by-example
@@ -1 +1 @@
-Subproject commit 7d3ff1c12db08a847a57a054be4a7951ce532d2d
+Subproject commit 152475937a8d8a1f508d8eeb57db79139bc803d9
